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eureka | AWS Service registry for resilient midtier load balancing | Configuration Management library

 by   Netflix Java Version: v1.10.14 License: Apache-2.0

 by   Netflix Java Version: v1.10.14 License: Apache-2.0

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kandi X-RAY | eureka Summary

eureka is a Java library typically used in Telecommunications, Media, Media, Entertainment, Devops, Configuration Management, Docker applications. eureka has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has medium support. You can download it from GitHub, Maven.
Eureka is a REST (Representational State Transfer) based service that is primarily used in the AWS cloud for locating services for the purpose of load balancing and failover of middle-tier servers. At Netflix, Eureka is used for the following purposes apart from playing a critical part in mid-tier load balancing.
Support
Support
Quality
Quality
Security
Security
License
License
Reuse
Reuse

kandi-support Support

  • eureka has a medium active ecosystem.
  • It has 10478 star(s) with 3186 fork(s). There are 974 watchers for this library.
  • It had no major release in the last 12 months.
  • There are 21 open issues and 541 have been closed. On average issues are closed in 96 days. There are 1 open pull requests and 0 closed requests.
  • It has a neutral sentiment in the developer community.
  • The latest version of eureka is v1.10.14
eureka Support
Best in #Configuration Management
Average in #Configuration Management
eureka Support
Best in #Configuration Management
Average in #Configuration Management

quality kandi Quality

  • eureka has 0 bugs and 0 code smells.
eureka Quality
Best in #Configuration Management
Average in #Configuration Management
eureka Quality
Best in #Configuration Management
Average in #Configuration Management

securitySecurity

  • eureka has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
  • eureka code analysis shows 0 unresolved vulnerabilities.
  • There are 0 security hotspots that need review.
eureka Security
Best in #Configuration Management
Average in #Configuration Management
eureka Security
Best in #Configuration Management
Average in #Configuration Management

license License

  • eureka is licensed under the Apache-2.0 License. This license is Permissive.
  • Permissive licenses have the least restrictions, and you can use them in most projects.
eureka License
Best in #Configuration Management
Average in #Configuration Management
eureka License
Best in #Configuration Management
Average in #Configuration Management

buildReuse

  • eureka releases are available to install and integrate.
  • Deployable package is available in Maven.
  • Build file is available. You can build the component from source.
  • Installation instructions are not available. Examples and code snippets are available.
  • eureka saves you 18519 person hours of effort in developing the same functionality from scratch.
  • It has 36652 lines of code, 3307 functions and 419 files.
  • It has medium code complexity. Code complexity directly impacts maintainability of the code.
eureka Reuse
Best in #Configuration Management
Average in #Configuration Management
eureka Reuse
Best in #Configuration Management
Average in #Configuration Management
Top functions reviewed by kandi - BETA

kandi has reviewed eureka and discovered the below as its top functions. This is intended to give you an instant insight into eureka implemented functionality, and help decide if they suit your requirements.

  • Generates a list of service urls from a DNS client configuration .
  • Checks if two instances are equal .
  • Initialize the eureka client context .
  • Binds the EIP to the EIP .
  • Get application durations from multiple regions .
  • Creates a composite resolver that can be used to resolver on the same instance .
  • Creates or returns the jersey client .
  • Generate Payload .
  • Gets all the Eureka containers .
  • Sends a request to the eureka client using the eureka client .

eureka Key Features

For aiding Netflix Asgard - an open source service which makes cloud deployments easier, in + Fast rollback of versions in case of problems avoiding the re-launch of 100’s of instances which could take a long time. + In rolling pushes, for avoiding propagation of a new version to all instances in case of problems.

For our cassandra deployments to take instances out of traffic for maintenance.

For our memcached caching services to identify the list of nodes in the ring.

For carrying other additional application specific metadata about services for various other reasons.

default

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The build requires `java8` because of some required libraries that are `java8` (`servo`), but the source and target compatibility are still set to `1.7`.
Note that tags should be checked out to perform a build.


Support

Spring Cloud Gateway; Spring MVC found on classpath, which is incompatible with Spring Cloud Gateway Issue

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mvn dependency:tree
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
-----------------------
mvn dependency:tree
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
-----------------------
spring.main.web-application-type=reactive

Use main Gradle project to define all dependencies versions

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dependencyResolutionManagement {
    versionCatalogs {
        libs {
            library('spring-cloud-bom', 'org.springframework.cloud:spring-cloud-dependencies:2021.0.1')
            library('spring-cloud-starter', 'org.springframework.cloud', 'spring-cloud-starter-netflix-eureka-client').withoutVersion()
            library('spring-boot-starter-validation', 'org.springframework.boot', 'spring-boot-starter-validation').withoutVersion()
            library('spring-boot-starter-test', 'org.springframework.boot', 'spring-boot-starter-test').withoutVersion()
            library('threetenbp', 'org.threeten:threetenbp:1.5.1')
            library('spring-boot-starter-actuator', 'org.springframework.boot', 'spring-boot-starter-actuator').withoutVersion()
            library('lombok', 'org.projectlombok:lombok:1.18.22')
            library('springfox-boot-starter', 'io.springfox:springfox-boot-starter:3.0.0')
            library('spring-boot-starter-hateoas', 'org.springframework.boot:spring-boot-starter-hateoas:2.6.3')
            library('hysterix-core', 'com.netflix.hystrix:hystrix-core:1.5.18')
            library('spring-security-core', 'org.springframework.security:spring-security-core:5.6.1')
            library('junit-jupiter-api', 'org.junit.jupiter:junit-jupiter-api:5.8.2')
            library('junit-jupiter-engine', 'org.junit.jupiter:junit-jupiter-engine:5.8.2')
        }
    }
}
dependencies {
    implementation libs.spring.cloud.starter
    implementation libs.spring.boot.starter.validation
    testImplementation libs.spring.boot.starter.test
    implementation libs.threetenbp
    implementation libs.spring.boot.starter.actuator
    // Lombok
    compileOnly libs.lombok
    annotationProcessor libs.lombok
    testCompileOnly libs.lombok
    testAnnotationProcessor libs.lombok
    // Swagger
    implementation libs.springfox.boot.starter
    implementation libs.spring.boot.starter.hateoas
    implementation libs.hysterix.core
    implementation libs.spring.security.core
    testImplementation libs.junit.jupiter.api
    testRuntimeOnly libs.junit.jupiter.engine
}
dependencyManagement {
    imports {
        mavenBom libs.spring.cloud.bom.get().toString()
    }
    resolutionStrategy {
        cacheDynamicVersionsFor 0, "seconds"
        cacheChangingModulesFor 0, "seconds"
    }
}
-----------------------
dependencyResolutionManagement {
    versionCatalogs {
        libs {
            library('spring-cloud-bom', 'org.springframework.cloud:spring-cloud-dependencies:2021.0.1')
            library('spring-cloud-starter', 'org.springframework.cloud', 'spring-cloud-starter-netflix-eureka-client').withoutVersion()
            library('spring-boot-starter-validation', 'org.springframework.boot', 'spring-boot-starter-validation').withoutVersion()
            library('spring-boot-starter-test', 'org.springframework.boot', 'spring-boot-starter-test').withoutVersion()
            library('threetenbp', 'org.threeten:threetenbp:1.5.1')
            library('spring-boot-starter-actuator', 'org.springframework.boot', 'spring-boot-starter-actuator').withoutVersion()
            library('lombok', 'org.projectlombok:lombok:1.18.22')
            library('springfox-boot-starter', 'io.springfox:springfox-boot-starter:3.0.0')
            library('spring-boot-starter-hateoas', 'org.springframework.boot:spring-boot-starter-hateoas:2.6.3')
            library('hysterix-core', 'com.netflix.hystrix:hystrix-core:1.5.18')
            library('spring-security-core', 'org.springframework.security:spring-security-core:5.6.1')
            library('junit-jupiter-api', 'org.junit.jupiter:junit-jupiter-api:5.8.2')
            library('junit-jupiter-engine', 'org.junit.jupiter:junit-jupiter-engine:5.8.2')
        }
    }
}
dependencies {
    implementation libs.spring.cloud.starter
    implementation libs.spring.boot.starter.validation
    testImplementation libs.spring.boot.starter.test
    implementation libs.threetenbp
    implementation libs.spring.boot.starter.actuator
    // Lombok
    compileOnly libs.lombok
    annotationProcessor libs.lombok
    testCompileOnly libs.lombok
    testAnnotationProcessor libs.lombok
    // Swagger
    implementation libs.springfox.boot.starter
    implementation libs.spring.boot.starter.hateoas
    implementation libs.hysterix.core
    implementation libs.spring.security.core
    testImplementation libs.junit.jupiter.api
    testRuntimeOnly libs.junit.jupiter.engine
}
dependencyManagement {
    imports {
        mavenBom libs.spring.cloud.bom.get().toString()
    }
    resolutionStrategy {
        cacheDynamicVersionsFor 0, "seconds"
        cacheChangingModulesFor 0, "seconds"
    }
}
-----------------------
dependencyResolutionManagement {
    versionCatalogs {
        libs {
            library('spring-cloud-bom', 'org.springframework.cloud:spring-cloud-dependencies:2021.0.1')
            library('spring-cloud-starter', 'org.springframework.cloud', 'spring-cloud-starter-netflix-eureka-client').withoutVersion()
            library('spring-boot-starter-validation', 'org.springframework.boot', 'spring-boot-starter-validation').withoutVersion()
            library('spring-boot-starter-test', 'org.springframework.boot', 'spring-boot-starter-test').withoutVersion()
            library('threetenbp', 'org.threeten:threetenbp:1.5.1')
            library('spring-boot-starter-actuator', 'org.springframework.boot', 'spring-boot-starter-actuator').withoutVersion()
            library('lombok', 'org.projectlombok:lombok:1.18.22')
            library('springfox-boot-starter', 'io.springfox:springfox-boot-starter:3.0.0')
            library('spring-boot-starter-hateoas', 'org.springframework.boot:spring-boot-starter-hateoas:2.6.3')
            library('hysterix-core', 'com.netflix.hystrix:hystrix-core:1.5.18')
            library('spring-security-core', 'org.springframework.security:spring-security-core:5.6.1')
            library('junit-jupiter-api', 'org.junit.jupiter:junit-jupiter-api:5.8.2')
            library('junit-jupiter-engine', 'org.junit.jupiter:junit-jupiter-engine:5.8.2')
        }
    }
}
dependencies {
    implementation libs.spring.cloud.starter
    implementation libs.spring.boot.starter.validation
    testImplementation libs.spring.boot.starter.test
    implementation libs.threetenbp
    implementation libs.spring.boot.starter.actuator
    // Lombok
    compileOnly libs.lombok
    annotationProcessor libs.lombok
    testCompileOnly libs.lombok
    testAnnotationProcessor libs.lombok
    // Swagger
    implementation libs.springfox.boot.starter
    implementation libs.spring.boot.starter.hateoas
    implementation libs.hysterix.core
    implementation libs.spring.security.core
    testImplementation libs.junit.jupiter.api
    testRuntimeOnly libs.junit.jupiter.engine
}
dependencyManagement {
    imports {
        mavenBom libs.spring.cloud.bom.get().toString()
    }
    resolutionStrategy {
        cacheDynamicVersionsFor 0, "seconds"
        cacheChangingModulesFor 0, "seconds"
    }
}

parsing error in yml file for microservices

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server:
  port: 9190


spring:
  application:
    name: API-Gateway
  cloud:
    gateway:
      routes:
        - id: user-service
          uri: lb://DEPT-SERVICE
          predicates:
            - path=/user/**
        - id: dept-service
          uri: lb://USER-SERVICE
          predicates:
            - path=/departments/**
eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8761/eureka
    instance:
    preferIpAddress: true

Spring RestTemplate and getForObject for Microservices issues

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<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
org.thymeleaf.exceptions.TemplateInputException: 
  Error resolving template [<viewname>], template might not
  exist or might not be accessible by any of the configured Template Resolvers
-----------------------
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
org.thymeleaf.exceptions.TemplateInputException: 
  Error resolving template [<viewname>], template might not
  exist or might not be accessible by any of the configured Template Resolvers

How to install nc in mysql container

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FROM mysql:8
RUN apt-get -q update && apt-get -qy install netcat
-----------------------
#!/bin/sh
# ./entrypoint.sh

# Set defaults for common environment variables
: ${MYSQL_PORT:=3306}
: ${MYSQL_DATABASE:=usermanagementappdp}

# Wait for the database to be ready
./wait-for.sh "$MYSQL_HOST:$MYSQL_PORT"

# Dynamically set the Spring database URL
export SPRING_DATASOURCE_URL="jdbc:mysql://$MYSQL_HOST:$MYSQL_PORT/$MYSQL_DATABASE?allowPublicKeyRetrieval=true&autoReconnect=true&useSSL=false"

# Run the main container command
exec "$@"
FROM openjdk:8

# Install OS-level dependencies before COPYing anything in
RUN apt-get update \
 && DEBIAN_FRONTEND=noninteractive \
    apt-get install --no-install-recommends --assume-yes \
      netcat

# COPY in the actual application (don't usually ADD things)
WORKDIR /app
COPY target/User-Management-App-0.0.1-SNAPSHOT.jar app.jar
COPY wait-for.sh entrypoint.sh .

# Set metadata for how to run the application
EXPOSE 8089
ENTRYPOINT ["./entrypoint.sh"]  # must be JSON-array syntax
CMD ["java", "-jar", "app.jar"]
version: "3.8"
services:
    mysql-standalone:
        image: mysql:8.0.25
        environment:
            - MYSQL_ROOT_PASSWORD=********
            - MYSQL_DATABASE=usermanagementappdp
        ports:
            - 3306:3306

    phpmyadmin: { image: phpmyadmin/phpmyadmin, ... }

    eureka-server:
        build: ../Eureka-Server-For-User-Management-App

    usermanagementapp-docker:
        ports:
            - 8089:8089
        environment:
            EUREKA_CLIENT_SERVICEURL_DEFAULTZONE: http://eureka-server:8761/eureka
            MYSQL_HOST: mysql-standalone
        build: .
        restart: on-failure
        depends_on: [mysql-standalone, eureka-server]
docker pull mysql:8.0.25
#!/bin/sh
# my-entrypoint.sh
...
exec docker-entrypoint.sh "$@" # running the original entrypoint
FROM mysql:8.0.27
...
COPY wait-for.sh my-entrypoint.sh /usr/local/bin
ENTRYPOINT ["my-entrypoint.sh"]
CMD ["mysqld"]
services:
    mysql-standalone:
        build: ./mysql
        # no image:
-----------------------
#!/bin/sh
# ./entrypoint.sh

# Set defaults for common environment variables
: ${MYSQL_PORT:=3306}
: ${MYSQL_DATABASE:=usermanagementappdp}

# Wait for the database to be ready
./wait-for.sh "$MYSQL_HOST:$MYSQL_PORT"

# Dynamically set the Spring database URL
export SPRING_DATASOURCE_URL="jdbc:mysql://$MYSQL_HOST:$MYSQL_PORT/$MYSQL_DATABASE?allowPublicKeyRetrieval=true&autoReconnect=true&useSSL=false"

# Run the main container command
exec "$@"
FROM openjdk:8

# Install OS-level dependencies before COPYing anything in
RUN apt-get update \
 && DEBIAN_FRONTEND=noninteractive \
    apt-get install --no-install-recommends --assume-yes \
      netcat

# COPY in the actual application (don't usually ADD things)
WORKDIR /app
COPY target/User-Management-App-0.0.1-SNAPSHOT.jar app.jar
COPY wait-for.sh entrypoint.sh .

# Set metadata for how to run the application
EXPOSE 8089
ENTRYPOINT ["./entrypoint.sh"]  # must be JSON-array syntax
CMD ["java", "-jar", "app.jar"]
version: "3.8"
services:
    mysql-standalone:
        image: mysql:8.0.25
        environment:
            - MYSQL_ROOT_PASSWORD=********
            - MYSQL_DATABASE=usermanagementappdp
        ports:
            - 3306:3306

    phpmyadmin: { image: phpmyadmin/phpmyadmin, ... }

    eureka-server:
        build: ../Eureka-Server-For-User-Management-App

    usermanagementapp-docker:
        ports:
            - 8089:8089
        environment:
            EUREKA_CLIENT_SERVICEURL_DEFAULTZONE: http://eureka-server:8761/eureka
            MYSQL_HOST: mysql-standalone
        build: .
        restart: on-failure
        depends_on: [mysql-standalone, eureka-server]
docker pull mysql:8.0.25
#!/bin/sh
# my-entrypoint.sh
...
exec docker-entrypoint.sh "$@" # running the original entrypoint
FROM mysql:8.0.27
...
COPY wait-for.sh my-entrypoint.sh /usr/local/bin
ENTRYPOINT ["my-entrypoint.sh"]
CMD ["mysqld"]
services:
    mysql-standalone:
        build: ./mysql
        # no image:
-----------------------
#!/bin/sh
# ./entrypoint.sh

# Set defaults for common environment variables
: ${MYSQL_PORT:=3306}
: ${MYSQL_DATABASE:=usermanagementappdp}

# Wait for the database to be ready
./wait-for.sh "$MYSQL_HOST:$MYSQL_PORT"

# Dynamically set the Spring database URL
export SPRING_DATASOURCE_URL="jdbc:mysql://$MYSQL_HOST:$MYSQL_PORT/$MYSQL_DATABASE?allowPublicKeyRetrieval=true&autoReconnect=true&useSSL=false"

# Run the main container command
exec "$@"
FROM openjdk:8

# Install OS-level dependencies before COPYing anything in
RUN apt-get update \
 && DEBIAN_FRONTEND=noninteractive \
    apt-get install --no-install-recommends --assume-yes \
      netcat

# COPY in the actual application (don't usually ADD things)
WORKDIR /app
COPY target/User-Management-App-0.0.1-SNAPSHOT.jar app.jar
COPY wait-for.sh entrypoint.sh .

# Set metadata for how to run the application
EXPOSE 8089
ENTRYPOINT ["./entrypoint.sh"]  # must be JSON-array syntax
CMD ["java", "-jar", "app.jar"]
version: "3.8"
services:
    mysql-standalone:
        image: mysql:8.0.25
        environment:
            - MYSQL_ROOT_PASSWORD=********
            - MYSQL_DATABASE=usermanagementappdp
        ports:
            - 3306:3306

    phpmyadmin: { image: phpmyadmin/phpmyadmin, ... }

    eureka-server:
        build: ../Eureka-Server-For-User-Management-App

    usermanagementapp-docker:
        ports:
            - 8089:8089
        environment:
            EUREKA_CLIENT_SERVICEURL_DEFAULTZONE: http://eureka-server:8761/eureka
            MYSQL_HOST: mysql-standalone
        build: .
        restart: on-failure
        depends_on: [mysql-standalone, eureka-server]
docker pull mysql:8.0.25
#!/bin/sh
# my-entrypoint.sh
...
exec docker-entrypoint.sh "$@" # running the original entrypoint
FROM mysql:8.0.27
...
COPY wait-for.sh my-entrypoint.sh /usr/local/bin
ENTRYPOINT ["my-entrypoint.sh"]
CMD ["mysqld"]
services:
    mysql-standalone:
        build: ./mysql
        # no image:
-----------------------
#!/bin/sh
# ./entrypoint.sh

# Set defaults for common environment variables
: ${MYSQL_PORT:=3306}
: ${MYSQL_DATABASE:=usermanagementappdp}

# Wait for the database to be ready
./wait-for.sh "$MYSQL_HOST:$MYSQL_PORT"

# Dynamically set the Spring database URL
export SPRING_DATASOURCE_URL="jdbc:mysql://$MYSQL_HOST:$MYSQL_PORT/$MYSQL_DATABASE?allowPublicKeyRetrieval=true&autoReconnect=true&useSSL=false"

# Run the main container command
exec "$@"
FROM openjdk:8

# Install OS-level dependencies before COPYing anything in
RUN apt-get update \
 && DEBIAN_FRONTEND=noninteractive \
    apt-get install --no-install-recommends --assume-yes \
      netcat

# COPY in the actual application (don't usually ADD things)
WORKDIR /app
COPY target/User-Management-App-0.0.1-SNAPSHOT.jar app.jar
COPY wait-for.sh entrypoint.sh .

# Set metadata for how to run the application
EXPOSE 8089
ENTRYPOINT ["./entrypoint.sh"]  # must be JSON-array syntax
CMD ["java", "-jar", "app.jar"]
version: "3.8"
services:
    mysql-standalone:
        image: mysql:8.0.25
        environment:
            - MYSQL_ROOT_PASSWORD=********
            - MYSQL_DATABASE=usermanagementappdp
        ports:
            - 3306:3306

    phpmyadmin: { image: phpmyadmin/phpmyadmin, ... }

    eureka-server:
        build: ../Eureka-Server-For-User-Management-App

    usermanagementapp-docker:
        ports:
            - 8089:8089
        environment:
            EUREKA_CLIENT_SERVICEURL_DEFAULTZONE: http://eureka-server:8761/eureka
            MYSQL_HOST: mysql-standalone
        build: .
        restart: on-failure
        depends_on: [mysql-standalone, eureka-server]
docker pull mysql:8.0.25
#!/bin/sh
# my-entrypoint.sh
...
exec docker-entrypoint.sh "$@" # running the original entrypoint
FROM mysql:8.0.27
...
COPY wait-for.sh my-entrypoint.sh /usr/local/bin
ENTRYPOINT ["my-entrypoint.sh"]
CMD ["mysqld"]
services:
    mysql-standalone:
        build: ./mysql
        # no image:
-----------------------
#!/bin/sh
# ./entrypoint.sh

# Set defaults for common environment variables
: ${MYSQL_PORT:=3306}
: ${MYSQL_DATABASE:=usermanagementappdp}

# Wait for the database to be ready
./wait-for.sh "$MYSQL_HOST:$MYSQL_PORT"

# Dynamically set the Spring database URL
export SPRING_DATASOURCE_URL="jdbc:mysql://$MYSQL_HOST:$MYSQL_PORT/$MYSQL_DATABASE?allowPublicKeyRetrieval=true&autoReconnect=true&useSSL=false"

# Run the main container command
exec "$@"
FROM openjdk:8

# Install OS-level dependencies before COPYing anything in
RUN apt-get update \
 && DEBIAN_FRONTEND=noninteractive \
    apt-get install --no-install-recommends --assume-yes \
      netcat

# COPY in the actual application (don't usually ADD things)
WORKDIR /app
COPY target/User-Management-App-0.0.1-SNAPSHOT.jar app.jar
COPY wait-for.sh entrypoint.sh .

# Set metadata for how to run the application
EXPOSE 8089
ENTRYPOINT ["./entrypoint.sh"]  # must be JSON-array syntax
CMD ["java", "-jar", "app.jar"]
version: "3.8"
services:
    mysql-standalone:
        image: mysql:8.0.25
        environment:
            - MYSQL_ROOT_PASSWORD=********
            - MYSQL_DATABASE=usermanagementappdp
        ports:
            - 3306:3306

    phpmyadmin: { image: phpmyadmin/phpmyadmin, ... }

    eureka-server:
        build: ../Eureka-Server-For-User-Management-App

    usermanagementapp-docker:
        ports:
            - 8089:8089
        environment:
            EUREKA_CLIENT_SERVICEURL_DEFAULTZONE: http://eureka-server:8761/eureka
            MYSQL_HOST: mysql-standalone
        build: .
        restart: on-failure
        depends_on: [mysql-standalone, eureka-server]
docker pull mysql:8.0.25
#!/bin/sh
# my-entrypoint.sh
...
exec docker-entrypoint.sh "$@" # running the original entrypoint
FROM mysql:8.0.27
...
COPY wait-for.sh my-entrypoint.sh /usr/local/bin
ENTRYPOINT ["my-entrypoint.sh"]
CMD ["mysqld"]
services:
    mysql-standalone:
        build: ./mysql
        # no image:
-----------------------
#!/bin/sh
# ./entrypoint.sh

# Set defaults for common environment variables
: ${MYSQL_PORT:=3306}
: ${MYSQL_DATABASE:=usermanagementappdp}

# Wait for the database to be ready
./wait-for.sh "$MYSQL_HOST:$MYSQL_PORT"

# Dynamically set the Spring database URL
export SPRING_DATASOURCE_URL="jdbc:mysql://$MYSQL_HOST:$MYSQL_PORT/$MYSQL_DATABASE?allowPublicKeyRetrieval=true&autoReconnect=true&useSSL=false"

# Run the main container command
exec "$@"
FROM openjdk:8

# Install OS-level dependencies before COPYing anything in
RUN apt-get update \
 && DEBIAN_FRONTEND=noninteractive \
    apt-get install --no-install-recommends --assume-yes \
      netcat

# COPY in the actual application (don't usually ADD things)
WORKDIR /app
COPY target/User-Management-App-0.0.1-SNAPSHOT.jar app.jar
COPY wait-for.sh entrypoint.sh .

# Set metadata for how to run the application
EXPOSE 8089
ENTRYPOINT ["./entrypoint.sh"]  # must be JSON-array syntax
CMD ["java", "-jar", "app.jar"]
version: "3.8"
services:
    mysql-standalone:
        image: mysql:8.0.25
        environment:
            - MYSQL_ROOT_PASSWORD=********
            - MYSQL_DATABASE=usermanagementappdp
        ports:
            - 3306:3306

    phpmyadmin: { image: phpmyadmin/phpmyadmin, ... }

    eureka-server:
        build: ../Eureka-Server-For-User-Management-App

    usermanagementapp-docker:
        ports:
            - 8089:8089
        environment:
            EUREKA_CLIENT_SERVICEURL_DEFAULTZONE: http://eureka-server:8761/eureka
            MYSQL_HOST: mysql-standalone
        build: .
        restart: on-failure
        depends_on: [mysql-standalone, eureka-server]
docker pull mysql:8.0.25
#!/bin/sh
# my-entrypoint.sh
...
exec docker-entrypoint.sh "$@" # running the original entrypoint
FROM mysql:8.0.27
...
COPY wait-for.sh my-entrypoint.sh /usr/local/bin
ENTRYPOINT ["my-entrypoint.sh"]
CMD ["mysqld"]
services:
    mysql-standalone:
        build: ./mysql
        # no image:
-----------------------
#!/bin/sh
# ./entrypoint.sh

# Set defaults for common environment variables
: ${MYSQL_PORT:=3306}
: ${MYSQL_DATABASE:=usermanagementappdp}

# Wait for the database to be ready
./wait-for.sh "$MYSQL_HOST:$MYSQL_PORT"

# Dynamically set the Spring database URL
export SPRING_DATASOURCE_URL="jdbc:mysql://$MYSQL_HOST:$MYSQL_PORT/$MYSQL_DATABASE?allowPublicKeyRetrieval=true&autoReconnect=true&useSSL=false"

# Run the main container command
exec "$@"
FROM openjdk:8

# Install OS-level dependencies before COPYing anything in
RUN apt-get update \
 && DEBIAN_FRONTEND=noninteractive \
    apt-get install --no-install-recommends --assume-yes \
      netcat

# COPY in the actual application (don't usually ADD things)
WORKDIR /app
COPY target/User-Management-App-0.0.1-SNAPSHOT.jar app.jar
COPY wait-for.sh entrypoint.sh .

# Set metadata for how to run the application
EXPOSE 8089
ENTRYPOINT ["./entrypoint.sh"]  # must be JSON-array syntax
CMD ["java", "-jar", "app.jar"]
version: "3.8"
services:
    mysql-standalone:
        image: mysql:8.0.25
        environment:
            - MYSQL_ROOT_PASSWORD=********
            - MYSQL_DATABASE=usermanagementappdp
        ports:
            - 3306:3306

    phpmyadmin: { image: phpmyadmin/phpmyadmin, ... }

    eureka-server:
        build: ../Eureka-Server-For-User-Management-App

    usermanagementapp-docker:
        ports:
            - 8089:8089
        environment:
            EUREKA_CLIENT_SERVICEURL_DEFAULTZONE: http://eureka-server:8761/eureka
            MYSQL_HOST: mysql-standalone
        build: .
        restart: on-failure
        depends_on: [mysql-standalone, eureka-server]
docker pull mysql:8.0.25
#!/bin/sh
# my-entrypoint.sh
...
exec docker-entrypoint.sh "$@" # running the original entrypoint
FROM mysql:8.0.27
...
COPY wait-for.sh my-entrypoint.sh /usr/local/bin
ENTRYPOINT ["my-entrypoint.sh"]
CMD ["mysqld"]
services:
    mysql-standalone:
        build: ./mysql
        # no image:

How to make a proper reactive extension on Eureka SelectableSection

copy iconCopydownload iconDownload
extension Reactive {
    func selectedValue<Row, T>() -> Observable<T?> where Base: SelectableSection<Row>, Row: SelectableRowType, T == Row.Cell.Value  {
        Observable.create { [base] observer in
            base.onSelectSelectableRow = { cell, row in
                observer.onNext(row.value) // this is problematic. See below.
            }
            return Disposables.create {
                observer.onCompleted() // this is wrong. See below.
            }
        }
    }
}
extension Reactive {
    func selectedValue<Row, T>() -> Observable<T?> where Base: SelectableSection<Row>, Row: SelectableRowType, T == Row.Cell.Value  {
        Observable.create { [base] observer in
            if let block = selectableSections.first(where: { $0.section === base }) {
                let subject = block.subject as! PublishSubject<T?>
                return Disposables.create(
                    block.disposable.retain(),
                    subject.subscribe(observer)
                )
            }
            else {
                let subject = PublishSubject<T?>()
                let block = SelectableSectionBlock(
                    section: base,
                    subject: subject,
                    disposable: RefCountDisposable(disposable: Disposables.create {
                        selectableSections.removeAll(where: { $0.section === base })
                    })
                )
                base.onSelectSelectableRow = { cell, row in
                    subject.onNext(row.value)
                }
                selectableSections.append(block)
                return Disposables.create(
                    block.disposable,
                    subject.subscribe(observer)
                )
            }
        }
    }
}

private struct SelectableSectionBlock {
    let section: Section
    let subject: Any
    let disposable: RefCountDisposable
}

private var selectableSections = [SelectableSectionBlock]()
-----------------------
extension Reactive {
    func selectedValue<Row, T>() -> Observable<T?> where Base: SelectableSection<Row>, Row: SelectableRowType, T == Row.Cell.Value  {
        Observable.create { [base] observer in
            base.onSelectSelectableRow = { cell, row in
                observer.onNext(row.value) // this is problematic. See below.
            }
            return Disposables.create {
                observer.onCompleted() // this is wrong. See below.
            }
        }
    }
}
extension Reactive {
    func selectedValue<Row, T>() -> Observable<T?> where Base: SelectableSection<Row>, Row: SelectableRowType, T == Row.Cell.Value  {
        Observable.create { [base] observer in
            if let block = selectableSections.first(where: { $0.section === base }) {
                let subject = block.subject as! PublishSubject<T?>
                return Disposables.create(
                    block.disposable.retain(),
                    subject.subscribe(observer)
                )
            }
            else {
                let subject = PublishSubject<T?>()
                let block = SelectableSectionBlock(
                    section: base,
                    subject: subject,
                    disposable: RefCountDisposable(disposable: Disposables.create {
                        selectableSections.removeAll(where: { $0.section === base })
                    })
                )
                base.onSelectSelectableRow = { cell, row in
                    subject.onNext(row.value)
                }
                selectableSections.append(block)
                return Disposables.create(
                    block.disposable,
                    subject.subscribe(observer)
                )
            }
        }
    }
}

private struct SelectableSectionBlock {
    let section: Section
    let subject: Any
    let disposable: RefCountDisposable
}

private var selectableSections = [SelectableSectionBlock]()

Issue selecting multiple inputs using selectInput

copy iconCopydownload iconDownload
server <- function(input, output, session){
  
  observeEvent(input$data1, {
    if (input$data1 != "All") {
      updateSelectInput(session, "data2", "Select County", choices = c("All", unique(df$County[df$State %in% input$data1])))
    } else {
      updateSelectInput(session, "data2", "Select County", choices = c("All", unique(df$County)))
    }
  }, priority = 2)
  
  observeEvent(c(input$data1, input$data2), {
    req(input$data2)
    if (input$data2 != "All") {
      updateSelectInput(session, "data3", "Select City", choices = c("All", unique(df$City[df$County %in% input$data2])))
    } else {
      if (input$data1 != "All") {
        updateSelectInput(session, "data3", "Select City", choices = c("All", unique(df$City[df$State %in% input$data1])))
      } else {
        updateSelectInput(session, "data3", "Select City", choices = c("All", unique(df$City)))
      }
    }
  }, priority = 1)
  
  filtered_data <- reactive({
    temp_data <- df
    req(input$data2,input$data3)
    if (input$data1 != "All") {
      temp_data <- temp_data[temp_data$State %in% input$data1, ]
    }
    if (input$data2 != "All") {
      temp_data <- temp_data[temp_data$County %in% input$data2, ]
    }
    if (input$data3 != "All") {
      temp_data <- temp_data[temp_data$City %in% input$data3, ]
    }
    temp_data
  })
  
  output$table <- renderDT(
    filtered_data()
  )
  
}

whitelabel error page 404 spring boot microservices Rest Controller

copy iconCopydownload iconDownload
package com.example.microservices;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class CitizenDetailServiceApplication {

    public static void main(String[] args) {
        SpringApplication.run(CitizenDetailServiceApplication.class, args);
    }    
}

jhipster microservices client springcloud config with authorization header to jhipster registry

copy iconCopydownload iconDownload
jhipster:
  xxxxxxxxx
  registry:
    password: xxxxxxxxxxxxx
jhipster:
  registry:
    password: <correct_password>
        ██╗ ██╗   ██╗ ████████╗ ███████╗   ██████╗ ████████╗ ████████╗ ███████╗
        ██║ ██║   ██║ ╚══██╔══╝ ██╔═══██╗ ██╔════╝ ╚══██╔══╝ ██╔═════╝ ██╔═══██╗
        ██║ ████████║    ██║    ███████╔╝ ╚█████╗     ██║    ██████╗   ███████╔╝
  ██╗   ██║ ██╔═══██║    ██║    ██╔════╝   ╚═══██╗    ██║    ██╔═══╝   ██╔══██║
  ╚██████╔╝ ██║   ██║ ████████╗ ██║       ██████╔╝    ██║    ████████╗ ██║  ╚██╗
   ╚═════╝  ╚═╝   ╚═╝ ╚═══════╝ ╚═╝       ╚═════╝     ╚═╝    ╚═══════╝ ╚═╝   ╚═╝

:: JHipster 🤓  :: Running Spring Boot 2.5.4 ::
:: https://www.jhipster.tech ::

2021-11-08 11:36:28.507  INFO 3872 --- [           main] com.okta.developer.store.StoreApp        : No active profile set, falling back to default profiles: dev,api-docs
2021-11-08 11:36:29.639 DEBUG 3872 --- [           main] i.g.r.utils.RxJava2OnClasspathCondition  : RxJava2 related Aspect extensions are not activated, because RxJava2 is not on the classpath.
2021-11-08 11:36:29.641 DEBUG 3872 --- [           main] i.g.r.utils.ReactorOnClasspathCondition  : Reactor related Aspect extensions are not activated because Resilience4j Reactor module is not on the classpath.
2021-11-08 11:36:29.656 DEBUG 3872 --- [           main] i.g.r.utils.RxJava2OnClasspathCondition  : RxJava2 related Aspect extensions are not activated, because RxJava2 is not on the classpath.
-----------------------
jhipster:
  xxxxxxxxx
  registry:
    password: xxxxxxxxxxxxx
jhipster:
  registry:
    password: <correct_password>
        ██╗ ██╗   ██╗ ████████╗ ███████╗   ██████╗ ████████╗ ████████╗ ███████╗
        ██║ ██║   ██║ ╚══██╔══╝ ██╔═══██╗ ██╔════╝ ╚══██╔══╝ ██╔═════╝ ██╔═══██╗
        ██║ ████████║    ██║    ███████╔╝ ╚█████╗     ██║    ██████╗   ███████╔╝
  ██╗   ██║ ██╔═══██║    ██║    ██╔════╝   ╚═══██╗    ██║    ██╔═══╝   ██╔══██║
  ╚██████╔╝ ██║   ██║ ████████╗ ██║       ██████╔╝    ██║    ████████╗ ██║  ╚██╗
   ╚═════╝  ╚═╝   ╚═╝ ╚═══════╝ ╚═╝       ╚═════╝     ╚═╝    ╚═══════╝ ╚═╝   ╚═╝

:: JHipster 🤓  :: Running Spring Boot 2.5.4 ::
:: https://www.jhipster.tech ::

2021-11-08 11:36:28.507  INFO 3872 --- [           main] com.okta.developer.store.StoreApp        : No active profile set, falling back to default profiles: dev,api-docs
2021-11-08 11:36:29.639 DEBUG 3872 --- [           main] i.g.r.utils.RxJava2OnClasspathCondition  : RxJava2 related Aspect extensions are not activated, because RxJava2 is not on the classpath.
2021-11-08 11:36:29.641 DEBUG 3872 --- [           main] i.g.r.utils.ReactorOnClasspathCondition  : Reactor related Aspect extensions are not activated because Resilience4j Reactor module is not on the classpath.
2021-11-08 11:36:29.656 DEBUG 3872 --- [           main] i.g.r.utils.RxJava2OnClasspathCondition  : RxJava2 related Aspect extensions are not activated, because RxJava2 is not on the classpath.
-----------------------
jhipster:
  xxxxxxxxx
  registry:
    password: xxxxxxxxxxxxx
jhipster:
  registry:
    password: <correct_password>
        ██╗ ██╗   ██╗ ████████╗ ███████╗   ██████╗ ████████╗ ████████╗ ███████╗
        ██║ ██║   ██║ ╚══██╔══╝ ██╔═══██╗ ██╔════╝ ╚══██╔══╝ ██╔═════╝ ██╔═══██╗
        ██║ ████████║    ██║    ███████╔╝ ╚█████╗     ██║    ██████╗   ███████╔╝
  ██╗   ██║ ██╔═══██║    ██║    ██╔════╝   ╚═══██╗    ██║    ██╔═══╝   ██╔══██║
  ╚██████╔╝ ██║   ██║ ████████╗ ██║       ██████╔╝    ██║    ████████╗ ██║  ╚██╗
   ╚═════╝  ╚═╝   ╚═╝ ╚═══════╝ ╚═╝       ╚═════╝     ╚═╝    ╚═══════╝ ╚═╝   ╚═╝

:: JHipster 🤓  :: Running Spring Boot 2.5.4 ::
:: https://www.jhipster.tech ::

2021-11-08 11:36:28.507  INFO 3872 --- [           main] com.okta.developer.store.StoreApp        : No active profile set, falling back to default profiles: dev,api-docs
2021-11-08 11:36:29.639 DEBUG 3872 --- [           main] i.g.r.utils.RxJava2OnClasspathCondition  : RxJava2 related Aspect extensions are not activated, because RxJava2 is not on the classpath.
2021-11-08 11:36:29.641 DEBUG 3872 --- [           main] i.g.r.utils.ReactorOnClasspathCondition  : Reactor related Aspect extensions are not activated because Resilience4j Reactor module is not on the classpath.
2021-11-08 11:36:29.656 DEBUG 3872 --- [           main] i.g.r.utils.RxJava2OnClasspathCondition  : RxJava2 related Aspect extensions are not activated, because RxJava2 is not on the classpath.

Ansible - nested loop over object without knowing object/key name

copy iconCopydownload iconDownload
    - name: Get the value of the key 1h
      debug:
        msg: "{{ etat_ms_rep.results | json_query(jmesquery) }}"
      vars:
        jmesquery: '[].*.*.["1h"]'
  msg:
  - - - - -1
      - - 100
  - - - - 100
      - - 100
    - name: Get the value of the key 1h
      debug:
        msg: "{{ etat_ms_rep.results | json_query(jmesquery) | flatten }}"
      vars:
        jmesquery: '[].*.*.["1h"]'
  msg:
  - -1
  - 100
  - 100
  - 100
-----------------------
    - name: Get the value of the key 1h
      debug:
        msg: "{{ etat_ms_rep.results | json_query(jmesquery) }}"
      vars:
        jmesquery: '[].*.*.["1h"]'
  msg:
  - - - - -1
      - - 100
  - - - - 100
      - - 100
    - name: Get the value of the key 1h
      debug:
        msg: "{{ etat_ms_rep.results | json_query(jmesquery) | flatten }}"
      vars:
        jmesquery: '[].*.*.["1h"]'
  msg:
  - -1
  - 100
  - 100
  - 100
-----------------------
    - name: Get the value of the key 1h
      debug:
        msg: "{{ etat_ms_rep.results | json_query(jmesquery) }}"
      vars:
        jmesquery: '[].*.*.["1h"]'
  msg:
  - - - - -1
      - - 100
  - - - - 100
      - - 100
    - name: Get the value of the key 1h
      debug:
        msg: "{{ etat_ms_rep.results | json_query(jmesquery) | flatten }}"
      vars:
        jmesquery: '[].*.*.["1h"]'
  msg:
  - -1
  - 100
  - 100
  - 100
-----------------------
    - name: Get the value of the key 1h
      debug:
        msg: "{{ etat_ms_rep.results | json_query(jmesquery) }}"
      vars:
        jmesquery: '[].*.*.["1h"]'
  msg:
  - - - - -1
      - - 100
  - - - - 100
      - - 100
    - name: Get the value of the key 1h
      debug:
        msg: "{{ etat_ms_rep.results | json_query(jmesquery) | flatten }}"
      vars:
        jmesquery: '[].*.*.["1h"]'
  msg:
  - -1
  - 100
  - 100
  - 100

Community Discussions

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QUESTION

Building Docker image from spring maven project for arm64 platform

Asked 2022-Mar-24 at 00:10

I'm in a Spring course, and I have a maven application (downloaded from the course resources) built from spring initializr. I can build a local Docker image with mvn spring-boot:build-image (no Dockerfile in the project). By default a Docker image is built as linux/amd64, but I am working with a M1 Apple Silicon chip (arm64). I've been looking many workarounds but with no success. Lastly, I found that maybe adding a Dockerfile and specifying the platform it would build the image accordingly.

My goal is to build a docker image for arm64 architecture.

So, I created a Dockerfile:

FROM --platform=linux/arm64 maven:3.8.4-jdk-11 AS build
COPY src /home/path_to_app/src
COPY pom.xml /home/path_to_app
RUN mvn -f /home/path_to_app/pom.xml spring-boot:build-image -DskipTests 

My project structure is:

standard maven structure

In terminal, at same pom.xml directory I run: docker buildx build --platform linux/arm64 --tag <mytag> .

Logs successful until =>Building image 'docker.io/myusername/myimage:mytag', then an exception occurs and build fails.

#8 125.7 [INFO] 
#8 125.7 [INFO] <<< spring-boot-maven-plugin:2.5.0:build-image (default-cli) < package @ currency-exchange-service <<<
#8 125.7 [INFO] 
#8 125.7 [INFO] 
#8 125.7 [INFO] --- spring-boot-maven-plugin:2.5.0:build-image (default-cli) @ currency-exchange-service ---
#8 125.8 [INFO] Building image 'docker.io/myname/myimage:0.0.1-SNAPSHOT'
#8 125.8 [INFO]
#8 125.8 [INFO] I/O exception (java.io.IOException) caught when processing request to {}->docker://localhost:2376: com.sun.jna.LastErrorException: [2] No such file or directory
#8 125.8 [INFO] Retrying request to {}->docker://localhost:2376
#8 125.8 [INFO] I/O exception (java.io.IOException) caught when processing request to {}->docker://localhost:2376: com.sun.jna.LastErrorException: [2] No such file or directory
#8 125.8 [INFO] Retrying request to {}->docker://localhost:2376
#8 125.8 [INFO] I/O exception (java.io.IOException) caught when processing request to {}->docker://localhost:2376: com.sun.jna.LastErrorException: [2] No such file or directory
#8 125.8 [INFO] Retrying request to {}->docker://localhost:2376
#8 125.9 [INFO] ------------------------------------------------------------------------
#8 125.9 [INFO] BUILD FAILURE
#8 125.9 [INFO] ------------------------------------------------------------------------
#8 125.9 [INFO] Total time:  02:04 min
#8 125.9 [INFO] Finished at: 2022-03-22T21:08:20Z
#8 125.9 [INFO] ------------------------------------------------------------------------
#8 125.9 [ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.5.0:build-image 
(default-cli) on project currency-exchange-service: Execution default-cli 
of goal org.springframework.boot:spring-boot-maven-plugin:2.5.0:build-image 
failed: Connection to the Docker daemon at 'localhost' failed with error "[2] 
No such file or directory"; ensure the Docker daemon is running and accessible:
com.sun.jna.LastErrorException: [2] No such file or directory -> [Help 1]

My pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.5.0</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.somename.microservices</groupId>
    <artifactId>mymicroservice-service</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>mymicroservice-service-docker</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>11</java.version>
        <spring-cloud.version>2020.0.2</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-sleuth</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-sleuth-zipkin</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.amqp</groupId>
            <artifactId>spring-rabbit</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
        <dependency>
            <groupId>io.github.resilience4j</groupId>
            <artifactId>resilience4j-spring-boot2</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <image>
                        <name>myusername/myprefix${project.artifactId}:${project.version}</name>
                    </image>
                    <pullPolicy>IF_NOT_PRESENT</pullPolicy>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <repositories>
        <repository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
        </repository>
    </repositories>

</project>

My docker daemon is running. Can't figure out why it tries to reach localhost:2376 (There is no such port in my project). My DOCKER_HOST is set to unix:///var/run/docker.sock and works fine. Tried to add to daemon.json:

{
"hosts": ["tcp://127.0.0.1:2376", "unix:///var/run/docker.sock"]
}

but docker daemon can't initialize (binding error, port already in use)

I don't know where does com.sun.jna.LastErrorException come from.

I suspect that maybe Docker in docker (dind) is needed, but I don't know how to set it up in my Dockerfile. Or maybe a port binding configuration.

Thank in advance for any help!!!

Note: I just want to build the image locally. I don't wish pushing to docker registry. I don't want any other stages in the build process.

ANSWER

Answered 2022-Mar-24 at 00:10

Building an ARM-based image is not currently possible with mvn spring-boot:build-image, because the Cloud Native Buildpacks builders that Spring Boot integrates with do not support this. This is one of the possible items of focus on the Paketo buildpacks 2022 roadmap, which you can cast votes for.

CNB documents a work-around for this, but it's not simple to set up and run.

RUN mvn -f /home/path_to_app/pom.xml spring-boot:build-image -DskipTests

You would need Docker-in-Docker to make something like this work, since the CNB builder processes that would run inside the Docker container need to talk to the Docker daemon. Regardless, this would not allow you to build an ARM image for the reasons stated above.

Source https://stackoverflow.com/questions/71581008

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