discource by podman lufy February 28, 2022 <h1>Discourse® packaged by Bitnami</h1> <p>from: <a href="https://hub.docker.com/r/bitnami/discourse/">https://hub.docker.com/r/bitnami/discourse/</a></p> <h2>What is Discourse®?</h2> <blockquote> <p>Discourse is an open source discussion platform with built-in moderation and governance systems that let discussion communities protect themselves from bad actors even without official moderators.</p> </blockquote> <p><a href="http://www.discourse.org/" rel="nofollow noopener">Overview of Discourse®</a></p> <p>Trademarks: This software listing is packaged by Bitnami. The respective trademarks mentioned in the offering are owned by the respective companies, and use of them does not imply any affiliation or endorsement.</p> <h2>TL;DR</h2> <pre><code class="language-console">$ curl -sSL https://raw.githubusercontent.com/bitnami/bitnami-docker-discourse/master/docker-compose.yml > docker-compose.yml $ docker-compose up -d</code></pre> <p><strong>Warning</strong>: This quick setup is only intended for development environments. You are encouraged to change the insecure default credentials and check out the available configuration options in the <a href="https://hub.docker.com/r/bitnami/discourse/#environment-variables">Environment Variables</a> section for a more secure deployment.</p> <h2>Why use Bitnami Images?</h2> <ul> <li>Bitnami closely tracks upstream source changes and promptly publishes new versions of this image using our automated systems.</li> <li>With Bitnami images the latest bug fixes and features are available as soon as possible.</li> <li>Bitnami containers, virtual machines and cloud images use the same components and configuration approach - making it easy to switch between formats based on your project needs.</li> <li>All our images are based on <a href="https://github.com/bitnami/minideb" rel="nofollow noopener">minideb</a> a minimalist Debian based container image which gives you a small base container image and the familiarity of a leading Linux distribution.</li> <li>All Bitnami images available in Docker Hub are signed with <a href="https://docs.docker.com/engine/security/trust/content_trust/" rel="nofollow noopener">Docker Content Trust (DCT)</a>. You can use <code>DOCKER_CONTENT_TRUST=1</code> to verify the integrity of the images.</li> <li>Bitnami container images are released daily with the latest distribution packages available.</li> </ul> <blockquote> <p>This <a href="https://quay.io/repository/bitnami/discourse?tab=tags" rel="nofollow noopener">CVE scan report</a> contains a security report with all open CVEs. To get the list of actionable security issues, find the "latest" tag, click the vulnerability report link under the corresponding "Security scan" field and then select the "Only show fixable" filter on the next page.</p> </blockquote> <h2>Supported tags and respective <code>Dockerfile</code> links</h2> <p>Learn more about the Bitnami tagging policy and the difference between rolling tags and immutable tags <a href="https://docs.bitnami.com/tutorials/understand-rolling-tags-containers/" rel="nofollow noopener">in our documentation page</a>.</p> <ul> <li><a href="https://github.com/bitnami/bitnami-docker-discourse/blob/2.7.13-debian-10-r30/2/debian-10/Dockerfile" rel="nofollow noopener"><code>2</code>, <code>2-debian-10</code>, <code>2.7.13</code>, <code>2.7.13-debian-10-r30</code>, <code>latest</code> (2/debian-10/Dockerfile)</a></li> </ul> <p>Subscribe to project updates by watching the <a href="https://github.com/bitnami/bitnami-docker-discourse" rel="nofollow noopener">bitnami/discourse GitHub repo</a>.</p> <h2>Get this image</h2> <p>The recommended way to get the Bitnami Discourse Docker Image is to pull the prebuilt image from the <a href="https://hub.docker.com/r/bitnami/discourse">Docker Hub Registry</a>.</p> <pre><code class="language-console">$ docker pull bitnami/discourse:latest</code></pre> <p>To use a specific version, you can pull a versioned tag. You can view the <a href="https://hub.docker.com/r/bitnami/discourse/tags/">list of available versions</a> in the Docker Hub Registry.</p> <pre><code class="language-console">$ docker pull bitnami/discourse:[TAG]</code></pre> <p>If you wish, you can also build the image yourself.</p> <pre><code class="language-console">$ docker build -t bitnami/discourse:latest 'https://github.com/bitnami/bitnami-docker-discourse.git#master:2/debian-10'</code></pre> <h2>How to use this image</h2> <p>Discourse requires access to a PostgreSQL database to store information. We'll use the <a href="https://www.github.com/bitnami/bitnami-docker-postgresql" rel="nofollow noopener">Bitnami Docker Image for PostgreSQL</a> for the database requirements.</p> <h3>Run the application using Docker Compose</h3> <p>The main folder of this repository contains a functional <a href="https://github.com/bitnami/bitnami-docker-discourse/blob/master/docker-compose.yml" rel="nofollow noopener"><code>docker-compose.yml</code></a> file. Run the application using it as shown below:</p> <pre><code class="language-console">$ curl -sSL https://raw.githubusercontent.com/bitnami/bitnami-docker-discourse/master/docker-compose.yml > docker-compose.yml $ docker-compose up -d</code></pre> <h3>Using the Docker Command Line</h3> <p>If you want to run the application manually instead of using <code>docker-compose</code>, these are the basic steps you need to run:</p> <h4>Step 1: Create a network</h4> <pre><code class="language-console">$ docker network create discourse-network</code></pre> <h4>Step 2: Create a volume for PostgreSQL persistence and create a PostgreSQL container</h4> <pre><code class="language-console">$ docker volume create --name postgresql_data $ docker run -d --name postgresql \ --env ALLOW_EMPTY_PASSWORD=yes \ --env POSTGRESQL_USERNAME=bn_discourse \ --env POSTGRESQL_PASSWORD=bitnami123 \ --env POSTGRESQL_DATABASE=bitnami_discourse \ --network discourse-network \ --volume postgresql_data:/bitnami/postgresql \ bitnami/postgresql:latest</code></pre> <h4>Step 3: Create a volume for Redis persistence and create a Redis container</h4> <pre><code class="language-console">$ docker volume create --name redis_data $ docker run -d --name redis \ --env ALLOW_EMPTY_PASSWORD=yes \ --network discourse-network \ --volume redis_data:/bitnami/redis \ bitnami/redis:latest</code></pre> <h4>Step 4: Create volumes for Discourse persistence and launch the container</h4> <pre><code class="language-console">$ docker volume create --name discourse_data $ docker run -d --name discourse \ -p 8080:8080 -p 8443:8443 \ --env ALLOW_EMPTY_PASSWORD=yes \ --env DISCOURSE_DATABASE_USER=bn_discourse \ --env DISCOURSE_DATABASE_PASSWORD=bitnami123 \ --env DISCOURSE_DATABASE_NAME=bitnami_discourse \ --env DISCOURSE_HOST=www.example.com \ --network discourse-network \ --volume discourse_data:/bitnami/discourse \ bitnami/discourse:latest</code></pre> <h4>Step 5: Launch the Sidekiq container</h4> <pre><code class="language-console">$ docker run -d --name sidekiq \ --network discourse-network \ --volume discourse_data:/bitnami/discourse \ bitnami/discourse:latest /opt/bitnami/scripts/discourse-sidekiq/run.sh</code></pre> <p>Access your application at <code>http://your-ip/</code></p> <h3>Troubleshooting discourse</h3> <p>If you need to run discourse administrative commands like <a href="https://meta.discourse.org/t/create-admin-account-from-console/17274" rel="nofollow noopener">Create admin account from console</a>, you can do so by executing a shell inside the container and running with the proper environment variables.</p> <pre><code>cd /opt/bitnami/discourse RAILS_ENV=production bundle exec rake admin:create</code></pre> <h2>Persisting your application</h2> <p>If you remove the container all your data will be lost, and the next time you run the image the database will be reinitialized. To avoid this loss of data, you should mount a volume that will persist even after the container is removed.</p> <p>For persistence you should mount a directory at the <code>/bitnami/discourse</code> path. If the mounted directory is empty, it will be initialized on the first run. Additionally you should <a href="https://github.com/bitnami/bitnami-docker-postgresql#persisting-your-database" rel="nofollow noopener">mount a volume for persistence of the PostgreSQL data</a>.</p> <p>The above examples define the Docker volumes named <code>postgresql_data</code> and <code>discourse_data</code>. The Discourse application state will persist as long as volumes are not removed.</p> <p>To avoid inadvertent removal of volumes, you can <a href="https://docs.docker.com/engine/tutorials/dockervolumes/" rel="nofollow noopener">mount host directories as data volumes</a>. Alternatively you can make use of volume plugins to host the volume data.</p> <h3>Mount host directories as data volumes with Docker Compose</h3> <p>This requires a minor change to the <a href="https://github.com/bitnami/bitnami-docker-discourse/blob/master/docker-compose.yml" rel="nofollow noopener"><code>docker-compose.yml</code></a> file present in this repository:</p> <pre><code class="language-diff"> postgresql: ... volumes: - - 'postgresql_data:/bitnami/postgresql' + - /path/to/postgresql-persistence:/bitnami/postgresql ... redis: ... volumes: - - 'redis_data:/bitnami/redis' + - /path/to/redis-persistence:/bitnami/redis ... discourse: ... volumes: - - 'discourse_data:/bitnami/discourse' + - /path/to/discourse-persistence:/bitnami/discourse ... sidekiq: ... volumes: - - 'discourse_data:/bitnami/discourse' + - /path/to/discourse-persistence:/bitnami/discourse ... -volumes: - postgresql_data: - driver: local - redis_data: - driver: local - discourse_data: - driver: local</code></pre> <h3>Mount host directories as data volumes using the Docker command line</h3> <h4>Step 1: Create a network (if it does not exist)</h4> <pre><code class="language-console">$ docker network create discourse-network</code></pre> <h4>Step 2. Create a PostgreSQL container with host volume</h4> <pre><code class="language-console">$ docker run -d --name postgresql \ --env ALLOW_EMPTY_PASSWORD=yes \ --env POSTGRESQL_USERNAME=bn_discourse \ --env POSTGRESQL_PASSWORD=bitnami123 \ --env POSTGRESQL_DATABASE=bitnami_discourse \ --network discourse-network \ --volume /path/to/postgresql-persistence:/bitnami/postgresql \ bitnami/postgresql:latest</code></pre> <h4>Step 3. Create a Redis container with host volume</h4> <pre><code class="language-console">$ docker run -d --name redis \ --env ALLOW_EMPTY_PASSWORD=yes \ --network discourse-network \ --volume /path/to/redis-persistence:/bitnami/redis \ bitnami/redis:latest</code></pre> <h4>Step 4. Create the Discourse container with host volumes</h4> <pre><code class="language-console">$ docker run -d --name discourse \ -p 8080:8080 -p 8443:8443 \ --env ALLOW_EMPTY_PASSWORD=yes \ --env DISCOURSE_DATABASE_USER=bn_discourse \ --env DISCOURSE_DATABASE_PASSWORD=bitnami123 \ --env DISCOURSE_DATABASE_NAME=bitnami_discourse \ --env DISCOURSE_HOST=www.example.com \ --network discourse-network \ --volume /path/to/discourse-persistence:/bitnami/discourse \ bitnami/discourse:latest</code></pre> <h4>Step 5. Create the Sidekiq container with host volumes</h4> <pre><code class="language-console">$ docker run -d --name sidekiq \ --network discourse-network \ --volume /path/to/discourse-persistence:/bitnami/discourse \ bitnami/discourse:latest</code></pre> <h2>Configuration</h2> <h3>Configuration files</h3> <p>You can mount your configuration files to the <code>/opt/bitnami/discourse/mounted-conf</code> directory. Make sure that your configuration files follow the standardized names used by Discourse. Some of the most common files include:</p> <ul> <li><code>discourse.conf</code></li> <li><code>database.yml</code></li> <li><code>site_settings.yml</code></li> </ul> <p>The set of default standard configuration files may be found <a href="https://github.com/discourse/discourse/tree/master/config" rel="nofollow noopener">here</a>. You may refer to the the Discourse <a href="https://www.discourse.org/" rel="nofollow noopener">webpage</a> for further details and specific configuration guides.</p> <h3>Environment variables</h3> <p>When you start the Discourse image, you can adjust the configuration of the instance by passing one or more environment variables either on the docker-compose file or on the <code>docker run</code> command line. If you want to add a new environment variable:</p> <ul> <li> <p>For docker-compose add the variable name and value under the application section in the <a href="https://github.com/bitnami/bitnami-docker-discourse/blob/master/docker-compose.yml" rel="nofollow noopener"><code>docker-compose.yml</code></a> file present in this repository:</p> <pre><code class="language-yaml"> discourse: ... environment: - DISCOURSE_PASSWORD=my_password ...</code></pre> </li> <li> <p>For manual execution add a <code>--env</code> option with each variable and value:</p> <pre><code class="language-console"> $ docker run -d --name discourse -p 80:8080 -p 443:8443 \ --env DISCOURSE_PASSWORD=my_password \ --network discourse-tier \ --volume /path/to/discourse-persistence:/bitnami \ bitnami/discourse:latest</code></pre> </li> </ul> <p>Available environment variables:</p> <h5>User and Site configuration</h5> <ul> <li><code>DISCOURSE_ENABLE_HTTPS</code>: Whether to use HTTPS by default. Default: <strong>no</strong></li> <li><code>DISCOURSE_EXTERNAL_HTTP_PORT_NUMBER</code>: Port to used by WordPress to generate URLs and links when accessing using HTTP. Will be ignored if multisite mode is not enabled. Default <strong>80</strong></li> <li><code>DISCOURSE_EXTERNAL_HTTPS_PORT_NUMBER</code>: Port to used by WordPress to generate URLs and links when accessing using HTTPS. Will be ignored if multisite mode is not enabled. Default <strong>443</strong></li> <li><code>DISCOURSE_USERNAME</code>: Discourse application username. Default: <strong>user</strong></li> <li><code>DISCOURSE_PASSWORD</code>: Discourse application password. Default: <strong>bitnami123</strong></li> <li><code>DISCOURSE_EMAIL</code>: Discourse application email. Default: <strong><a href="mailto:user@example.com" rel="nofollow noopener">user@example.com</a></strong></li> <li><code>DISCOURSE_FIRST_NAME</code>: Discourse user first name. Default: <strong>UserName</strong></li> <li><code>DISCOURSE_LAST_NAME</code>: Discourse user last name. Default: <strong>LastName</strong></li> <li><code>DISCOURSE_SITE_NAME</code>: Discourse site name. Default: <strong>My site!</strong></li> <li><code>DISCOURSE_HOST</code>: Discourse hostname to create application URLs for features such as email notifications and emojis. It can be either an IP or a domain. Default: <strong><a href="http://www.example.com/" rel="nofollow noopener">www.example.com</a></strong></li> <li><code>DISCOURSE_PRECOMPILE_ASSETS</code>: Whether to precompile assets during the initialization. Required when installing plugins. Default: <strong>yes</strong></li> <li><code>DISCOURSE_EXTRA_CONF_CONTENT</code>: Extra configuration to append to the <code>discourse.conf</code> configuration file. No defaults.</li> <li><code>DISCOURSE_PASSENGER_SPAWN_METHOD</code>: Passenger method used for spawning application processes. Valid values: direct, smart. Default: <strong>direct</strong></li> <li><code>DISCOURSE_PASSENGER_EXTRA_FLAGS</code>: Extra flags to pass to the Passenger start command. No defaults.</li> <li><code>DISCOURSE_PORT_NUMBER</code>: Port number in which Discourse will run. Default: <strong>3000</strong></li> <li><code>DISCOURSE_ENV</code>: Discourse environment mode. Allowed values: <em>development</em>, <em>production</em>, <em>test</em>. Default: <strong>production</strong></li> <li><code>DISCOURSE_ENABLE_CONF_PERSISTENCE</code>: Whether to enable persistence of the Discourse <code>discourse.conf</code> configuration file. Default: <strong>no</strong></li> <li><code>DISCOURSE_SKIP_BOOTSTRAP</code>: Whether to skip performing the initial bootstrapping for the application. This is necessary in case you use a database that already has Discourse data. Default: <strong>no</strong></li> </ul> <h5>Database connection configuration</h5> <ul> <li><code>DISCOURSE_DATABASE_HOST</code>: Hostname for PostgreSQL server. Default: <strong>postgresql</strong></li> <li><code>DISCOURSE_DATABASE_PORT_NUMBER</code>: Port used by the PostgreSQL server. Default: <strong>5432</strong></li> <li><code>DISCOURSE_DATABASE_NAME</code>: Database name that Discourse will use to connect with the database. Default: <strong>bitnami_discourse</strong></li> <li><code>DISCOURSE_DATABASE_USER</code>: Database user that Discourse will use to connect with the database. Default: <strong>bn_discourse</strong></li> <li><code>DISCOURSE_DATABASE_PASSWORD</code>: Database password that Discourse will use to connect with the database. No defaults.</li> <li><code>ALLOW_EMPTY_PASSWORD</code>: It can be used to allow blank passwords. Default: <strong>no</strong></li> </ul> <h5>Redis connection configuration</h5> <ul> <li><code>DISCOURSE_REDIS_HOST</code>: Hostname for Redis(TM). Default: <strong>redis</strong></li> <li><code>DISCOURSE_REDIS_PORT_NUMBER</code>: Port used by Redis(TM). Default: <strong>6379</strong></li> <li><code>DISCOURSE_REDIS_PASSWORD</code>: Password for Redis(TM).</li> </ul> <h5>Create a database for Discourse using postgresql-client</h5> <ul> <li><code>POSTGRESQL_CLIENT_DATABASE_HOST</code>: Hostname for the PostgreSQL server. Default: <strong>postgresql</strong></li> <li><code>POSTGRESQL_CLIENT_DATABASE_PORT_NUMBER</code>: Port used by the PostgreSQL server. Default: <strong>5432</strong></li> <li><code>POSTGRESQL_CLIENT_POSTGRES_USER</code>: Database admin user. Default: <strong>root</strong></li> <li><code>POSTGRESQL_CLIENT_POSTGRES_PASSWORD</code>: Database password for the database admin user. No defaults.</li> <li><code>POSTGRESQL_CLIENT_CREATE_DATABASE_NAMES</code>: List of new databases to be created by the postgresql-client module. No defaults.</li> <li><code>POSTGRESQL_CLIENT_CREATE_DATABASE_USER</code>: New database user to be created by the postgresql-client module. No defaults.</li> <li><code>POSTGRESQL_CLIENT_CREATE_DATABASE_PASSWORD</code>: Database password for the <code>POSTGRESQL_CLIENT_CREATE_DATABASE_USER</code> user. No defaults.</li> <li><code>POSTGRESQL_CLIENT_CREATE_DATABASE_EXTENSIONS</code>: PostgreSQL extensions to enable in the specified database during the first initialization. No defaults.</li> <li><code>POSTGRESQL_CLIENT_EXECUTE_SQL</code>: SQL code to execute in the PostgreSQL server. No defaults.</li> <li><code>ALLOW_EMPTY_PASSWORD</code>: It can be used to allow blank passwords. Default: <strong>no</strong></li> </ul> <h5>SMTP Configuration</h5> <p>To configure Discourse to send email using SMTP you can set the following environment variables:</p> <ul> <li><code>DISCOURSE_SMTP_HOST</code>: SMTP host.</li> <li><code>DISCOURSE_SMTP_PORT</code>: SMTP port.</li> <li><code>DISCOURSE_SMTP_USER</code>: SMTP account user.</li> <li><code>DISCOURSE_SMTP_PASSWORD</code>: SMTP account password.</li> <li><code>DISCOURSE_SMTP_PROTOCOL</code>: If specified, SMTP protocol to use. Allowed values: tls, ssl. No default.</li> <li><code>DISCOURSE_SMTP_AUTH</code>: SMTP authentication method. Allowed values: <em>login</em>, <em>plain</em>, <em>cram_md5</em>. Default: <strong>login</strong>.</li> </ul> <h4>Examples</h4> <h5>SMTP configuration using a Gmail account</h5> <p>This would be an example of SMTP configuration using a Gmail account:</p> <ul> <li> <p>Modify the environment variables used for the <code>discourse</code> and <code>sidekiq</code> containers in the <a href="https://github.com/bitnami/bitnami-docker-discourse/blob/master/docker-compose.yml" rel="nofollow noopener"><code>docker-compose.yml</code></a> file present in this repository:</p> <pre><code class="language-yaml"> discourse: ... environment: ... - DISCOURSE_SMTP_HOST=smtp.gmail.com - DISCOURSE_SMTP_PORT=587 - DISCOURSE_SMTP_USER=your_email@gmail.com - DISCOURSE_SMTP_PASSWORD=your_password - DISCOURSE_SMTP_PROTOCOL=tls ... sidekiq: ... environment: ... - DISCOURSE_SMTP_HOST=smtp.gmail.com - DISCOURSE_SMTP_PORT=587 - DISCOURSE_SMTP_USER=your_email@gmail.com - DISCOURSE_SMTP_PASSWORD=your_password - DISCOURSE_SMTP_PROTOCOL=tls ...</code></pre> </li> <li> <p>For manual execution:</p> <ul> <li> <p>First, create the Discourse container:</p> <pre><code class="language-console"> $ docker run -d --name discourse -p 80:8080 -p 443:8443 \ --env DISCOURSE_DATABASE_USER=bn_discourse \ --env DISCOURSE_DATABASE_NAME=bitnami_discourse \ --env DISCOURSE_SMTP_HOST=smtp.gmail.com \ --env DISCOURSE_SMTP_PORT=587 \ --env DISCOURSE_SMTP_USER=your_email@gmail.com \ --env DISCOURSE_SMTP_PASSWORD=your_password \ --env DISCOURSE_SMTP_PROTOCOL=tls \ --network discourse-tier \ --volume /path/to/discourse-persistence:/bitnami \ bitnami/discourse:latest</code></pre> </li> <li> <p>Then, create the Sidekiq container:</p> <pre><code class="language-console"> $ docker run -d --name sidekiq \ --env DISCOURSE_DATABASE_USER=bn_discourse \ --env DISCOURSE_DATABASE_NAME=bitnami_discourse \ --env DISCOURSE_SMTP_HOST=smtp.gmail.com \ --env DISCOURSE_SMTP_PORT=587 \ --env DISCOURSE_SMTP_USER=your_email@gmail.com \ --env DISCOURSE_SMTP_PASSWORD=your_password \ --env DISCOURSE_SMTP_PROTOCOL=tls \ --network discourse-tier \ --volume /path/to/discourse-persistence:/bitnami \ bitnami/discourse:latest</code></pre> </li> </ul> </li> </ul> <p>In order to verify your configuration works properly, you can test your configuration parameters from the container itself.</p> <pre><code class="language-console">$ docker run -u root -it bitnami/discourse:latest bash $ install_packages swaks $ swaks --to your_email@domain.com --from your_email@domain.com --server your.smtp.server.com --auth LOGIN --auth-user your_email@domain.com -tls</code></pre> <p>See the <a href="https://docs.bitnami.com/general/how-to/troubleshoot-smtp-issues/" rel="nofollow noopener">documentation on troubleshooting SMTP issues</a> if there are problems.</p> <h5>Connect Discourse container to an existing database</h5> <p>The Bitnami Discourse container supports connecting the Discourse application to an external database. This would be an example of using an external database for Discourse.</p> <ul> <li> <p>Modify the <a href="https://github.com/bitnami/bitnami-docker-discourse/blob/master/docker-compose.yml" rel="nofollow noopener"><code>docker-compose.yml</code></a> file present in this repository:</p> <pre><code class="language-diff"> discourse: ... environment: - - DISCOURSE_DATABASE_HOST=mariadb + - DISCOURSE_DATABASE_HOST=mariadb_host - DISCOURSE_DATABASE_PORT_NUMBER=3306 - DISCOURSE_DATABASE_NAME=discourse_db - DISCOURSE_DATABASE_USER=discourse_user - - ALLOW_EMPTY_PASSWORD=yes + - DISCOURSE_DATABASE_PASSWORD=discourse_password ...</code></pre> </li> <li> <p>For manual execution:</p> <pre><code class="language-console"> $ docker run -d --name discourse\ -p 8080:8080 -p 8443:8443 \ --network discourse-network \ --env DISCOURSE_DATABASE_HOST=mariadb_host \ --env DISCOURSE_DATABASE_PORT_NUMBER=3306 \ --env DISCOURSE_DATABASE_NAME=discourse_db \ --env DISCOURSE_DATABASE_USER=discourse_user \ --env DISCOURSE_DATABASE_PASSWORD=discourse_password \ --volume discourse_data:/bitnami/discourse \ bitnami/discourse:latest</code></pre> </li> </ul> <p>In case the database already contains data from a previous Discourse installation, you need to set the variable <code>DISCOURSE_SKIP_BOOTSTRAP</code> to <code>yes</code>. Otherwise, the container would execute the installation wizard and could modify the existing data in the database. Note that, when setting <code>DISCOURSE_SKIP_BOOTSTRAP</code> to <code>yes</code>, values for environment variables such as <code>DISCOURSE_USERNAME</code>, <code>DISCOURSE_PASSWORD</code> or <code>DISCOURSE_EMAIL</code> will be ignored.</p> <h2>Logging</h2> <p>The Bitnami Discourse Docker image sends the container logs to <code>stdout</code>. To view the logs:</p> <pre><code class="language-console">$ docker logs discourse</code></pre> <p>Or using Docker Compose:</p> <pre><code class="language-console">$ docker-compose logs discourse</code></pre> <p>You can configure the containers <a href="https://docs.docker.com/engine/admin/logging/overview/" rel="nofollow noopener">logging driver</a> using the <code>--log-driver</code> option if you wish to consume the container logs differently. In the default configuration docker uses the <code>json-file</code> driver.</p> <h2>Maintenance</h2> <h3>Backing up your container</h3> <p>To backup your data, configuration and logs, follow these simple steps:</p> <h4>Step 1: Stop the currently running container</h4> <pre><code class="language-console">$ docker stop discourse</code></pre> <p>Or using Docker Compose:</p> <pre><code class="language-console">$ docker-compose stop discourse</code></pre> <h4>Step 2: Run the backup command</h4> <p>We need to mount two volumes in a container we will use to create the backup: a directory on your host to store the backup in, and the volumes from the container we just stopped so we can access the data.</p> <pre><code class="language-console">$ docker run --rm -v /path/to/discourse-backups:/backups --volumes-from discourse busybox \ cp -a /bitnami/discourse /backups/latest</code></pre> <h3>Restoring a backup</h3> <p>Restoring a backup is as simple as mounting the backup as volumes in the containers.</p> <p>For the PostgreSQL database container:</p> <pre><code class="language-diff"> $ docker run -d --name postgresql \ ... - --volume /path/to/postgresql-persistence:/bitnami/postgresql \ + --volume /path/to/postgresql-backups/latest:/bitnami/postgresql \ bitnami/postgresql:latest</code></pre> <p>For the Discourse container:</p> <pre><code class="language-diff"> $ docker run -d --name discourse \ ... - --volume /path/to/discourse-persistence:/bitnami/discourse \ + --volume /path/to/discourse-backups/latest:/bitnami/discourse \ bitnami/discourse:latest</code></pre> <h3>Upgrade this image</h3> <p>Bitnami provides up-to-date versions of PostgreSQL and Discourse, including security patches, soon after they are made upstream. We recommend that you follow these steps to upgrade your container. We will cover here the upgrade of the Discourse container. For the PostgreSQL upgrade see: <a href="https://github.com/bitnami/bitnami-docker-postgresql/blob/master/README.md#upgrade-this-image" rel="nofollow noopener">https://github.com/bitnami/bitnami-docker-postgresql/blob/master/README.md#upgrade-this-image</a></p> <p>The <code>bitnami/discourse:latest</code> tag always points to the most recent release. To get the most recent release you can simple repull the <code>latest</code> tag from the Docker Hub with <code>docker pull bitnami/discourse:latest</code>. However it is recommended to use <a href="https://hub.docker.com/r/bitnami/discourse/tags/">tagged versions</a>.</p> <h4>Step 1: Get the updated image</h4> <pre><code class="language-console">$ docker pull bitnami/discourse:latest</code></pre> <h4>Step 2: Stop the running container</h4> <p>Stop the currently running container using the command</p> <pre><code class="language-console">$ docker-compose stop discourse</code></pre> <h4>Step 3: Take a snapshot of the application state</h4> <p>Follow the steps in <a href="https://hub.docker.com/r/bitnami/discourse/#backing-up-your-container">Backing up your container</a> to take a snapshot of the current application state.</p> <h4>Step 4: Remove the currently running container</h4> <p>Remove the currently running container by executing the following command:</p> <pre><code class="language-console">docker-compose rm -v discourse</code></pre> <h4>Step 5: Run the new image</h4> <p>Update the image tag in <code>docker-compose.yml</code> and re-create your container with the new image:</p> <pre><code class="language-console">$ docker-compose up -d</code></pre>
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