6e8dd268a8
Go 1.16 reached end of life, so update to the current version of Go, but also run CI on the previous version (which is still supported). We should probably also decide wether or not we want the Dockerfiles to pin to a specific minor version; this makes the releases more deterministic. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
147 lines
4.9 KiB
Markdown
147 lines
4.9 KiB
Markdown
# Docker Compose V1 + V2 registry
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This compose configuration configures a `v1` and `v2` registry behind an `nginx`
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proxy. By default, you can access the combined registry at `localhost:5000`.
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The configuration does not support pushing images to `v2` and pulling from `v1`.
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If a `docker` client has a version less than 1.6, Nginx will route its requests
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to the 1.0 registry. Requests from newer clients will route to the 2.0 registry.
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### Install Docker Compose
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1. Open a new terminal on the host with your `distribution` source.
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2. Get the `docker-compose` binary.
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$ sudo wget https://github.com/docker/compose/releases/download/1.1.0/docker-compose-`uname -s`-`uname -m` -O /usr/local/bin/docker-compose
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This command installs the binary in the `/usr/local/bin` directory.
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3. Add executable permissions to the binary.
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$ sudo chmod +x /usr/local/bin/docker-compose
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## Build and run with Compose
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1. In your terminal, navigate to the `distribution/contrib/compose` directory
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This directory includes a single `docker-compose.yml` configuration.
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nginx:
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build: "nginx"
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ports:
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- "5000:5000"
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links:
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- registryv1:registryv1
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- registryv2:registryv2
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registryv1:
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image: registry
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ports:
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- "5000"
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registryv2:
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build: "../../"
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ports:
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- "5000"
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This configuration builds a new `nginx` image as specified by the
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`nginx/Dockerfile` file. The 1.0 registry comes from Docker's official
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public image. Finally, the registry 2.0 image is built from the
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`distribution/Dockerfile` you've used previously.
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2. Get a registry 1.0 image.
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$ docker pull registry:0.9.1
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The Compose configuration looks for this image locally. If you don't do this
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step, later steps can fail.
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3. Build `nginx`, the registry 2.0 image, and
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$ docker-compose build
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registryv1 uses an image, skipping
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Building registryv2...
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Step 0 : FROM golang:1.18
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...
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Removing intermediate container 9f5f5068c3f3
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Step 4 : COPY docker-registry-v2.conf /etc/nginx/docker-registry-v2.conf
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---> 74acc70fa106
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Removing intermediate container edb84c2b40cb
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Successfully built 74acc70fa106
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The command outputs its progress until it completes.
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4. Start your configuration with compose.
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$ docker-compose up
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Recreating compose_registryv1_1...
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Recreating compose_registryv2_1...
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Recreating compose_nginx_1...
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Attaching to compose_registryv1_1, compose_registryv2_1, compose_nginx_1
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...
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5. In another terminal, display the running configuration.
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$ docker ps
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CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
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a81ad2557702 compose_nginx:latest "nginx -g 'daemon of 8 minutes ago Up 8 minutes 80/tcp, 443/tcp, 0.0.0.0:5000->5000/tcp compose_nginx_1
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0618437450dd compose_registryv2:latest "registry cmd/regist 8 minutes ago Up 8 minutes 0.0.0.0:32777->5000/tcp compose_registryv2_1
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aa82b1ed8e61 registry:latest "docker-registry" 8 minutes ago Up 8 minutes 0.0.0.0:32776->5000/tcp compose_registryv1_1
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### Explore a bit
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1. Check for TLS on your `nginx` server.
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$ curl -v https://localhost:5000
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* Rebuilt URL to: https://localhost:5000/
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* Hostname was NOT found in DNS cache
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* Trying 127.0.0.1...
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* Connected to localhost (127.0.0.1) port 5000 (#0)
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* successfully set certificate verify locations:
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* CAfile: none
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CApath: /etc/ssl/certs
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* SSLv3, TLS handshake, Client hello (1):
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* SSLv3, TLS handshake, Server hello (2):
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* SSLv3, TLS handshake, CERT (11):
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* SSLv3, TLS alert, Server hello (2):
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* SSL certificate problem: self signed certificate
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* Closing connection 0
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curl: (60) SSL certificate problem: self signed certificate
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More details here: http://curl.haxx.se/docs/sslcerts.html
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2. Tag the `v1` registry image.
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$ docker tag registry:latest localhost:5000/registry_one:latest
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2. Push it to the localhost.
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$ docker push localhost:5000/registry_one:latest
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If you are using the 1.6 Docker client, this pushes the image the `v2 `registry.
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4. Use `curl` to list the image in the registry.
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$ curl -v -X GET http://localhost:5000/v2/registry_one/tags/list
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* Hostname was NOT found in DNS cache
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* Trying 127.0.0.1...
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* Connected to localhost (127.0.0.1) port 32777 (#0)
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> GET /v2/registry1/tags/list HTTP/1.1
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> User-Agent: curl/7.36.0
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> Host: localhost:5000
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> Accept: */*
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>
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< HTTP/1.1 200 OK
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< Content-Type: application/json
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< Docker-Distribution-Api-Version: registry/2.0
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< Date: Tue, 14 Apr 2015 22:34:13 GMT
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< Content-Length: 39
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<
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{"name":"registry_one","tags":["latest"]}
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* Connection #0 to host localhost left intact
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This example refers to the specific port assigned to the 2.0 registry. You saw
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this port earlier, when you used `docker ps` to show your running containers.
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