92 lines
2.9 KiB
Markdown
92 lines
2.9 KiB
Markdown
# Docker Image Example
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This is an example on how you could create your own Docker Image For Apache ActiveMQ Artemis based on CentOS or Debian.
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# Preparing
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Use the script ./prepare-docker.sh as it will copy the docker files under the binary distribution.
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```
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$ ./prepare-docker.sh $ARTEMIS_HOME
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```
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# Building
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Go to `$ARTEMIS_HOME` where you prepared the binary with Docker files.
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## For Debian
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From within the `$ARTEMIS_HOME` folder:
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```
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$ docker build -f ./docker/Dockerfile-debian -t artemis-debian .
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```
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## For CentOS
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From within the `$ARTEMIS_HOME` folder:
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```
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$ docker build -f ./docker/Dockerfile-centos -t artemis-centos .
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```
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**Note:**
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`-t artemis-debian`,`-t artemis-centos` are just tag names for the purpose of this guide
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# Environment Variables
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Environment variables determine the options sent to `artemis create` on first execution of the Docker
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container. The available options are:
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**`ARTEMIS_USER`**
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The administrator username. The default is `artemis`.
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**`ARTEMIS_PASSWORD`**
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The administrator password. The default is `artemis`.
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**`ANONYMOUS_LOGIN`**
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Set to `true` to allow anonymous logins. The default is `false`.
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**`EXTRA_ARGS`**
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Additional arguments sent to the `artemis create` command. The default is `--http-host 0.0.0.0 --relax-jolokia`.
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Setting this value will override the default. See the documentation on `artemis create` for available options.
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**Final broker creation command:**
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The combination of the above environment variables results in the `docker-run.sh` script calling
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the following command to create the broker instance the first time the Docker container runs:
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${ARTEMIS_HOME}/bin/artemis create --user ${ARTEMIS_USER} --password ${ARTEMIS_PASSWORD} --silent ${LOGIN_OPTION} ${EXTRA_ARGS}
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Note: `LOGIN_OPTION` is either `--allow-anonymous` or `--require-login` depending on the value of `ANONYMOUS_LOGIN`.
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# Mapping point
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- `/var/lib/artemis-instance`
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It's possible to map a folder as the instance broker.
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This will hold the configuration and the data of the running broker. This is useful for when you want the data persisted outside of a container.
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# Lifecycle of the execution
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A broker instance will be created during the execution of the instance. If you pass a mapped folder for `/var/lib/artemis-instance` an image will be created or reused depending on the contents of the folder.
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## Running a CentOS image
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The image just created in the previous step allows both stateless or stateful runs.
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The stateless run is achieved by:
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```
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$ docker run --rm -it -p 61616:61616 -p 8161:8161 artemis-centos
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```
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The image will also support mapped folders and mapped ports. To run the image with the instance persisted on the host:
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```
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docker run -it -p 61616:61616 -p 8161:8161 -v <broker folder on host>:/var/lib/artemis-instance artemis-centos
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```
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where `<broker folder on host>` is a folder where the broker instance is supposed to
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be saved and reused on each run.
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