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Diffstat (limited to 'doc/user/packages/dependency_proxy/index.md')
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1 files changed, 23 insertions, 4 deletions
diff --git a/doc/user/packages/dependency_proxy/index.md b/doc/user/packages/dependency_proxy/index.md index 3dd900d2cbe..e2957aff756 100644 --- a/doc/user/packages/dependency_proxy/index.md +++ b/doc/user/packages/dependency_proxy/index.md @@ -123,7 +123,7 @@ Proxy manually without including the port: docker pull gitlab.example.com:443/my-group/dependency_proxy/containers/alpine:latest ``` -You can also use [custom CI/CD variables](../../../ci/variables/README.md#custom-cicd-variables) to store and access your personal access token or other valid credentials. +You can also use [custom CI/CD variables](../../../ci/variables/index.md#custom-cicd-variables) to store and access your personal access token or other valid credentials. ### Store a Docker image in Dependency Proxy cache @@ -134,13 +134,13 @@ To store a Docker image in Dependency Proxy storage: 1. Use one of these commands. In these examples, the image is `alpine:latest`. 1. You can also pull images by digest to specify exactly which version of an image to pull. - - Pull an image by tag by adding the image to your [`.gitlab-ci.yml`](../../../ci/yaml/README.md#image) file: + - Pull an image by tag by adding the image to your [`.gitlab-ci.yml`](../../../ci/yaml/index.md#image) file: ```shell image: gitlab.example.com/groupname/dependency_proxy/containers/alpine:latest ``` - - Pull an image by digest by adding the image to your [`.gitlab-ci.yml`](../../../ci/yaml/README.md#image) file: + - Pull an image by digest by adding the image to your [`.gitlab-ci.yml`](../../../ci/yaml/index.md#image) file: ```shell image: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/alpine@sha256:c9375e662992791e3f39e919b26f510e5254b42792519c180aad254e6b38f4dc @@ -180,7 +180,7 @@ Watch how to [use the Dependency Proxy to help avoid Docker Hub rate limits](htt In November 2020, Docker introduced [rate limits on pull requests from Docker Hub](https://docs.docker.com/docker-hub/download-rate-limit/). -If your GitLab [CI/CD configuration](../../../ci/README.md) uses +If your GitLab [CI/CD configuration](../../../ci/index.md) uses an image from Docker Hub, each time a job runs, it may count as a pull request. To help get around this limit, you can pull your image from the Dependency Proxy cache instead. @@ -252,3 +252,22 @@ hub_docker_quota_check: - | TOKEN=$(curl "https://auth.docker.io/token?service=registry.docker.io&scope=repository:ratelimitpreview/test:pull" | jq --raw-output .token) && curl --head --header "Authorization: Bearer $TOKEN" "https://registry-1.docker.io/v2/ratelimitpreview/test/manifests/latest" 2>&1 ``` + +## Troubleshooting + +### Dependency Proxy Connection Failure + +If a service alias is not set the `docker:19.03.12` image is unable to find the +`dind` service, and an error like the following is thrown: + +```plaintext +error during connect: Get http://docker:2376/v1.39/info: dial tcp: lookup docker on 192.168.0.1:53: no such host +``` + +This can be resolved by setting a service alias for the Docker service: + +```yaml +services: + - name: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/docker:18.09.7-dind + alias: docker +``` |