varnish-cache | Varnish Cache source code repository | Caching library

 by   varnishcache C Version: varnish-7.3.0 License: Non-SPDX

kandi X-RAY | varnish-cache Summary

kandi X-RAY | varnish-cache Summary

varnish-cache is a C library typically used in Server, Caching applications. varnish-cache has no bugs and it has medium support. However varnish-cache has 13 vulnerabilities and it has a Non-SPDX License. You can download it from GitHub, GitLab.

Varnish Cache source code repository
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              varnish-cache has a medium active ecosystem.
              It has 3254 star(s) with 368 fork(s). There are 109 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 58 open issues and 2881 have been closed. On average issues are closed in 207 days. There are 36 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of varnish-cache is varnish-7.3.0

            kandi-Quality Quality

              varnish-cache has 0 bugs and 0 code smells.

            kandi-Security Security

              OutlinedDot
              varnish-cache has 13 vulnerability issues reported (2 critical, 9 high, 2 medium, 0 low).
              varnish-cache code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              varnish-cache has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              varnish-cache releases are not available. You will need to build from source code and install.

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            varnish-cache Key Features

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            varnish-cache Examples and Code Snippets

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            Community Discussions

            QUESTION

            Empty reply from server with Varnish & hitch on separate cache server
            Asked 2022-Jan-12 at 15:08

            After installation of varnish & hitch on ubuntu 20.04 server, getting following error:

            curl: (52) Empty reply from server

            Tutorial I am following:

            ...

            ANSWER

            Answered 2022-Jan-12 at 14:07
            Fix empty reply by enabling PROXY protocol

            Uncomment the following line in your hitch.conf:

            Source https://stackoverflow.com/questions/70656894

            QUESTION

            Varnish Config with backend on different host 503 error
            Asked 2021-May-07 at 08:19

            I am trying to setup a varnish cache where the varnish instance is hosted on one server and the backend is on a different server. They are both on aws lightsail instances. The issue I am having is when I try and go to the site, I get the Error 503 Backend fetch failed error. Here is the varnish default.vcl:

            ...

            ANSWER

            Answered 2021-May-07 at 08:19

            I discovered the key information in the logs:

            Source https://stackoverflow.com/questions/67426956

            QUESTION

            Docker - Xdebug debug PHP CLI script (VS Code)
            Asked 2021-Mar-26 at 12:49

            This question is regarding getting Xdebug to work with a CLI PHP script hosted inside a web-server Docker instance.

            I have docker containers : web-server, varnish-cache, nginx-proxy. I am able to successfully debug a Magento 2 web-page via browser with this VS Code Launch config:

            This is with the new XDebug v3 which removed alot of v2 configuration settings

            Client (Windows 10) IP (my laptop) : 192.168.1.150, Host (Ubuntu 20.04) IP: 192.168.1.105, hosting with Docker containers IP: 172.100.0.2-5

            VS Code launch:

            ...

            ANSWER

            Answered 2021-Mar-26 at 12:49

            You need to set Xdebug's xdebug.client_host to the IP address of your IDE, which you indicated is 192.168.1.150.

            You also need to turn off xdebug.discover_client_host, as that would try to use the internal Docker network IP (172.100.0.2), which is not where your IDE is listening on.

            Remember: Xdebug makes a connection to the IDE, not the other way around.

            Source https://stackoverflow.com/questions/66675243

            QUESTION

            Why is "ExecStart=" defined twice in customexec.config (Varnish Cache)?
            Asked 2021-Feb-10 at 13:04

            Why is ExecStart= defined twice and why is the first one empty? Is it because Varnish will start two processes, one parent and one child? If so, where can I read about it? I can't seem to find any information about this.

            In Varnish's own documentation, again and again across versions, this is the instruction:

            Source: https://varnish-cache.org/docs/trunk/tutorial/putting_varnish_on_port_80.html

            ...

            ANSWER

            Answered 2021-Feb-10 at 13:04

            According to https://www.freedesktop.org/software/systemd/man/systemd.service.html#ExecStart= :

            Unless Type= is oneshot, exactly one command must be given. When Type=oneshot is used, zero or more commands may be specified. Commands may be specified by providing multiple command lines in the same directive, or alternatively, this directive may be specified more than once with the same effect. If the empty string is assigned to this option, the list of commands to start is reset, prior assignments of this option will have no effect. If no ExecStart= is specified, then the service must have RemainAfterExit=yes and at least one ExecStop= line set. (Services lacking both ExecStart= and ExecStop= are not valid.)

            Long story short:

            • All occurences of ExecStart are executed, unless Type=oneshot
            • By setting ExecStart=, we're making sure that previous values are removed
            • By setting ExecStart again with an actual value, only this command will be executed

            Source https://stackoverflow.com/questions/66115650

            QUESTION

            Local Varnish IP getting appended to real IP in nginx access logs
            Asked 2020-Oct-08 at 11:58

            I'm using Varnish + nginx on a web server and I'm trying to get the real IP of users going to my site in the access.log, I was able to get it to work but for some reason my local IP (the one Varnish is running from) gets appended to the log entry as well, here's how it looks like:

            ...

            ANSWER

            Answered 2020-Oct-08 at 11:58

            Everything is working as expected according to your log format:

            log_format main '$http_x_forwarded_for - $remote_user [$time_local] ' '"$request" $status $body_bytes_sent "$http_referer" ' '"$http_user_agent"';

            Note how you're logging the value of X-Forwarded-For header, as opposed to the IP.

            If you want real IP, use $remote_addr together with the directives you already tried:

            Source https://stackoverflow.com/questions/64261893

            QUESTION

            Varnish response based on Cookie
            Asked 2020-Sep-23 at 11:06

            I have the following Varnish configuration:

            ...

            ANSWER

            Answered 2020-Sep-23 at 10:58

            It looks like you're doing all the right things, but I would advise you to do some debugging.

            If you run the following command, the Hash tag will appear in varnishlog:

            Source https://stackoverflow.com/questions/64025847

            QUESTION

            Docker - Reuse docker-compose configurations for different projects
            Asked 2020-Aug-18 at 12:44

            I have a large Docker project with Dockerfiles for nginx, apache2, varnish, redis configured and working well after weeks of changes and testing.

            I am now at a point where I setup the projects to use docker-compose and override.yml files for easy setup:

            I am trying to use the same docker-compose setup for multiple projects (websites)

            Normal startup (using docker-compose.yml and optional docker-compose.override.yml) docker-compose up -d

            Custom startup (using specific docker-compose files) docker-compose -f docker-compose.yml -f custom/docker-compose.website1.yml up -d

            Both these methods starts up fine: docker-compose ps

            Ignore the fact that they are Exit 0 - I stopped them using docker-compose stop, the containers work fine nginx-proxy /usr/bin/supervisord Exit 0 redis-cache /usr/bin/supervisord Exit 0 varnish-cache /usr/bin/supervisord Exit 0 web-server-apache2 /usr/bin/supervisord Exit 0

            Now I want a second project (website) to use the same docker/docker-compose configuration setup:

            docker-compose -f docker-compose.yml -f anothercustomfolder/docker-compose.website2.yml up -d

            To my surprise docker-compose recreated containers and do not create a new set of containers:

            See 'current setup' section for how I setup things.

            ...

            ANSWER

            Answered 2020-Aug-18 at 12:44

            Thanks to advice from David Maze, I struggled further with configuring the docker-compose setup to work with multiple projects.

            Information based on docker-compose v1.25.0 (July 2020)

            This discussion is especially important when you want to re-use (persist) your containers (start/stop instead of just up/down - deleting)

            As initially pointed out in my question - if you try to create containers using docker-compose up -d there are some pitfalls which the tool simply does not support right at the moment.

            Pitfalls

            PITFALLS OF CURRENT DOCKER-COMPOSE IMPLEMENTATION:

            1. If you just use overridden docker-compose*.yml with different container_names (per 'project') with files in the same folder

            docker-compose up will simply replace existing containers as explained in my question.

            1. You can do the following: docker-compose -p CUSTOM_PROJECT_NAME -f file1.yml -f file2.yml up -d, but:

            This on its own is useless - these containers will only work until you want stop them. As soon as you want to do docker-compose start (to restart existing container set) it will simply fail with Error: No containers to start

            1. If you use two different folders with the same docker-compose project (ie cloned project): for instance ./dc-project1 ./dc-project2 but using container_name field inside docker-compose.*.yml file:

            When you try to run docker-compose -f f1.yml -f f2.yml up -d inside ./dc-project1 and the same inside ./dc-project2 folder, you will get the following error: You have to remove (or rename) that container to be able to reuse that name.

            1. Similar issues with your Docker network will occur with docker-compose when you use overridden files: Removed most of the custom settings to make the network setting clearer:

            Network will be attached correctly from your overridden file on docker-compose up, but as soon as you want to docker-compose start it looks for your default network name: in the default docker-compose.yml or even the docker-compose.override.yml file if it exists. In other words - it ignores your custom docker-compose override files (see example below):

            docker-compose.yml:

            Source https://stackoverflow.com/questions/63262898

            QUESTION

            Access container_name in Dockerfile (from docker-compose)
            Asked 2020-Aug-14 at 13:47

            I have setup a docker-compose project which are creating multiple images:

            ...

            ANSWER

            Answered 2020-Aug-14 at 13:47

            In core Docker, there are two separate concepts. An image is a built version of some piece of software packaged together with its dependencies; a container is a running instance of an image. There are separate docker build and docker run commands to build images and launch containers, and you can launch multiple containers from a single image.

            Docker Compose wraps these concepts. In particular, the build: block corresponds to the image-build step, and that is what invokes the Dockerfile. None of the other Compose options are available or visible inside the Dockerfile. You cannot access the container_name: or environment: variables or volumes: because those don't exist at this point in the build lifecycle; you also cannot contact other Compose services from inside the Dockerfile.

            It's pretty common to have multiple containers run off the same image if they have largely the same code base but need a different top-level command. One example is a Python Django application that needs Celery background workers; you'd have the same project structure but a different command for the Celery worker.

            Source https://stackoverflow.com/questions/63411403

            QUESTION

            Magento 2 with Varnish and Nginx as SSL termination - backend server is serving
            Asked 2020-Jul-30 at 07:15

            I am setting up a Magento server with Nginx SSL termination and varnish nginx and varnish 5.1 are installed in dedicated host 192.168.1.251 (ubuntu) & Magento on 192.168.1.250 (ubuntu)

            nginx 1.6 (192.168.1.251:443 or https://mywebsite.com/) + varnish (127.0.0.1:6081) -> magento 2.3 (192.168.1.250:8080)

            problem is content like jpg,svg etc are served from 192.168.1.250 i.e my backend server directly and scripts are blocked due to CORS ref below image chrome DevTools

            if I access 192.168.1.251:6081 i.e varnish host & port all the contents are coming from the backend server Chrome Devtool

            nginx ssl termination config:

            ...

            ANSWER

            Answered 2020-Jul-30 at 07:15
            The problem

            The issue you're experiencing is probably related to the fact that your Magento base URL is set to 192.168.1.250:8080.

            Magento will enforce that value if it notices the Host header (or the protocol scheme) doesn't match its own.

            So in your case, you're sending the following host header to Magento through Varnish:

            Source https://stackoverflow.com/questions/63078881

            QUESTION

            How to map apache authgroupfile with varnish-cache
            Asked 2020-Jul-27 at 13:41
            Hi Friends,

            Please help, we are trying add user and roles to our legacy application by mapping users in Apache AuthgroupFile with varnish-cache reverse-proxy, any user authenticated through Apache Basic Auth should be able to go through; The user is mapped to the role in the AuthgroupFile and in back-end we check for the group name and assign the role in the application

            can we read the AuthgroupFile to a variable and in varnish-cache and check for the REMOTE_USER header?

            #AuthgroupFile admin: foo boo roo readonly: goo too zoo

            #varnish-cache rule

            ...

            ANSWER

            Answered 2020-Jul-27 at 13:41

            If you want to check for authenticated users, I'd advise you to have a look at vmod_basicauth.

            Its a Varnish module that reads an .htpasswd file and gives you a VCL API to interact with these logins.

            Here's how to use this module in VCL:

            Source https://stackoverflow.com/questions/63113392

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install varnish-cache

            You can download it from GitHub, GitLab.

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            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            gh repo clone varnishcache/varnish-cache

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            git@github.com:varnishcache/varnish-cache.git

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