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warp-docker

Docker Pulls WARP version in latest image GOST version in latest image

Run official Cloudflare WARP client in Docker.

Note

Cannot guarantee that the GOST and WARP client contained in the image are the latest versions. If necessary, please build your own image.

Usage

Start the container

To run the WARP client in Docker, just write the following content to docker-compose.yml and run docker-compose up -d.

version: "3"

services:
  warp:
    image: caomingjun/warp
    container_name: warp
    restart: always
    ports:
      - "1080:1080"
    environment:
      - WARP_SLEEP=2
      # - WARP_LICENSE_KEY= # optional
    cap_add:
      # Docker already have them, these are for podman users
      - MKNOD
      - AUDIT_WRITE
      # additional required cap for warp, both for podman and docker
      - NET_ADMIN
    sysctls:
      - net.ipv6.conf.all.disable_ipv6=0
      - net.ipv4.conf.all.src_valid_mark=1
    volumes:
      - ./data:/var/lib/cloudflare-warp

Try it out to see if it works:

curl --socks5-hostname 127.0.0.1:1080 https://cloudflare.com/cdn-cgi/trace

If the output contains warp=on or warp=plus, the container is working properly. If the output contains warp=off, it means that the container failed to connect to the WARP service.

Configuration

You can configure the container through the following environment variables:

  • WARP_SLEEP: The time to wait for the WARP daemon to start, in seconds. The default is 2 seconds. If the time is too short, it may cause the WARP daemon to not start before using the proxy, resulting in the proxy not working properly. If the time is too long, it may cause the container to take too long to start. If your server has poor performance, you can increase this value appropriately.
  • WARP_LICENSE_KEY: The license key of the WARP client, which is optional. If you have subscribed to WARP+ service, you can fill in the key in this environment variable. If you have not subscribed to WARP+ service, you can ignore this environment variable.
  • GOST_ARGS: The arguments passed to GOST. The default is -L :1080, which means to listen on port 1080 in the container at the same time through HTTP and SOCKS5 protocols. If you want to have UDP support or use advanced features provided by other protocols, you can modify this parameter. For more information, refer to GOST documentation. If you modify the port number, you may also need to modify the port mapping in the docker-compose.yml.
  • REGISTER_WHEN_MDM_EXISTS: If set, will register consumer account (WARP or WARP+, in contrast to Zero Trust) even when mdm.xml exists. You usually don't need this, as mdm.xml are usually used for Zero Trust. However, some users may want to adjust advanced settings in mdm.xml while still using consumer account.
  • BETA_FIX_HOST_CONNECTIVITY: If set, will add checks for host connectivity into healthchecks and automatically fix it if necessary. See host connectivity issue for more information.

Data persistence: Use the host volume ./data to persist the data of the WARP client. You can change the location of this directory or use other types of volumes. If you modify the WARP_LICENSE_KEY, please delete the ./data directory so that the client can detect and register again.

For advanced usage or configurations, see documentation.

Use other versions

The tag of docker image is in the format of {WARP_VERSION}-{GOST_VERSION}, for example, 2023.10.120-2.11.5 means that the WARP client version is 2023.10.120 and the GOST version is 2.11.5. If you want to use other versions, you can specify the tag in the docker-compose.yml.

You can also use the latest tag to use the latest version of the image.

Note

You can access the image built by a certain commit by using the tag {WARP_VERSION}-{GOST_VERSION}-{COMMIT_SHA}. Not all commits have images built.

Note

Not all version combinations are available. Do check the list of tags in Docker Hub before you use one. If the version you want is not available, you can build your own image.

Build

You can use Github Actions to build the image yourself.

  1. Fork this repository.
  2. Create necessary variables and secrets in the repository settings:
    1. variable REGISTRY: for example, docker.io (Docker Hub)
    2. variable IMAGE_NAME: for example, caomingjun/warp
    3. variable DOCKER_USERNAME: for example, caomingjun
    4. secret DOCKER_PASSWORD: generate a token in Docker Hub and fill in the token
  3. Manually trigger the workflow Build and push image in the Actions tab.

This will build the image with the latest version of WARP client and GOST and push it to the specified registry. You can also specify the version of GOST by giving input to the workflow. Building image with custom WARP client version is not supported yet.

If you want to build the image locally, you can use .github/workflows/build-publish.yml as a reference.

Common problems

Proxying UDP or even ICMP traffic

The default GOST_ARGS is -L :1080, which provides HTTP and SOCKS5 proxy. If you want to proxy UDP or even ICMP traffic, you need to change the GOST_ARGS. Read the GOST documentation for more information. If you modify the port number, you may also need to modify the port mapping in the docker-compose.yml.

How to connect from another container

You may want to use the proxy from another container and find that you cannot connect to 127.0.0.1:1080 in that container. This is because the docker-compose.yml only maps the port to the host, not to other containers. To solve this problem, you can use the service name as the hostname, for example, warp:1080. You also need to put the two containers in the same docker network.

Container runs well but cannot connect from host

This issue often arises when using Zero Trust. You may find that you can run curl --socks5-hostname 127.0.0.1:1080 https://cloudflare.com/cdn-cgi/trace inside the container, but cannot run this command outside the container (from host or another container). This is because Cloudflare WARP client is grabbing the traffic. See host connectivity issue for solutions.

How to enable MASQUE / use with Zero Trust / set up WARP Connector / change health check parameters

See documentation.

Permission issue when using Podman

See documentation for explaination and solution.

Further reading

For how it works, read my blog post.