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Showing content from https://sourcegraph.com/docs/admin/deploy/docker-compose/upgrade below:

Upgrade Sourcegraph on Docker Compose

This document describes the process to update a Docker Compose Sourcegraph instance. If you are unfamiliar with sourcegraph versioning or releases see our general concepts documentation.

A standard upgrade occurs between a Sourcegraph version and the minor or major version released immediately after it. If you would like to jump forward several versions, you must perform a multi-version upgrade instead.

If you've configured Docker Compose with a release branch, please merge the upstream release tag for the next minor version into your release branch.

In the following example, the release branch is being upgraded to v6.6.2517.

# first, checkout the release branch
git checkout release
# fetch updates
git fetch upstream
# merge the upstream release tag into your release branch
git checkout release
git merge v6.6.2517

For each conflict, you need to reconcile any customizations you made with the updates from the new version. Use the information you gathered earlier from the change log and changes list to interpret the merge conflict and to ensure that it doesn't over-write your customizations. You may need to update your customizations to accommodate the new version.

NOTE: If you have made no changes or only very minimal changes to your configuration, you can also ask git to always select incoming changes in the event of merge conflicts. In the following example merges will be accepted from the upstream version v6.6.2517:

git merge -X theirs {CURRENT_VERSION_STRING}

If you do this, make sure your configuration is correct before proceeding because it may have made changes to your docker-compose YAML file.

SSH into your instance and navigate to the appropriate folder:

# AWS
cd /home/ec2-user/deploy-sourcegraph-docker/docker-compose
# Azure, Digital Ocean, Google Cloud
cd /root/deploy-sourcegraph-docker/docker-compose

Download all the latest docker images to your local docker daemon:

$ docker-compose pull --include-deps

Restart Docker Compose using the new minor version along with your customizations:

$ docker-compose up -d --remove-orphans

To perform a multi-version upgrade via migrators upgrade command on a Sourcegraph instance running on Docker compose follow the procedure below:

1. Check Upgrade Readiness:

   • Check the upgrade notes for the version range you're passing through.
   • Check the Site Admin > Updates page to determine upgrade readiness.

2. Pull and merge upstream changes:

   • Follow the standard upgrade procedure to pull and merge upstream changes from the version you are upgrading to your release branch.

3. Disable Connections to the Database:

   • Stop running containers connected to the databases and the databases:

   $ docker-compose down --remove-orphans

4. Run Migrator with the upgrade command:

   • For more detailed instructions and available command flags see our migrator docs.
   1. If the migrator image: in your docker-compose.yaml wasn't updated to in the latest release of migrator in step 2 set migrator's image to the latest release. Example:

   migrator:
     container_name: migrator
     image: 'index.docker.io/sourcegraph/migrator:6.0.0'

   1. Set the migrator command: to upgrade you'll need to supply a --to= argument to the version you're upgrading to. Example:

   command: ['upgrade', '--from=v5.9.0', '--to=v6.0.0']

   Note: you may add the --dry-run flag to the command: to test things out before altering the dbs

   1. Run migrator with docker-compose up migrator

   • Migrator depends_on: will ensure the databases are ready before attempting to run the migrator. Ensuring that database entry point scripts are run before the migrator attempts to connect to the databases. For users upgrading from a version earlier than 5.10.0, a PostgreSQL version is required and will be performed automatically here. For more details, see Upgrading PostgreSQL.

   Example:

   $ ~/deploy-sourcegraph-docker/docker-compose/ docker-compose up migrator
   ✔ Network docker-compose_sourcegraph Create... 0.1s
   ✔ Container pgsql Created 0.1s
   ✔ Container codeinsights-db Created 0.1s
   ✔ Container codeintel-db Created 0.1s
   ! codeinsights-db The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested 0.0s
   ! pgsql The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested 0.0s
   ! codeintel-db The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested 0.0s
   ✔ Container migrator Created 0.0s
   ! migrator The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested 0.0s
   Attaching to migrator
   migrator | ✱ Sourcegraph migrator 6.0.0
   migrator | ⚠️ Failed to check for migrator update: unexpected status code 404. Continuing...
   migrator | Attempting connection to frontend...
   migrator | ✅ Connection to frontend succeeded
   migrator | Attempting connection to frontend...
   migrator | ✅ Connection to frontend succeeded
   migrator | Attempting connection to codeintel...
   migrator | ✅ Connection to codeintel succeeded
   migrator | Attempting connection to codeinsights...
   migrator | ✅ Connection to codeinsights succeeded
   migrator | 👉 Migrating to v6.0 (step 1 of 1)
   migrator | 👉 Running schema migrations
   migrator | ✅ Schema migrations complete
   migrator exited with code 0

5. Run Migrator with the up command

   • Set your migrator command: to up

   Note: If you aren't upgrading to the latest release remember to set the migrator image back to the version you are upgrading to. Example:

   migrator:
     container_name: migrator
     image: 'index.docker.io/sourcegraph/migrator:6.0.0@sha256:ec295eb0b743da6bf56777ca6524972267a5c442b0288095e2fe12fce38ebacc'
     cpus: 0.5
     mem_limit: '500m'
     command: ['up']

6. Start your containers again:

   • run docker-compose up -d in the folder containing your docker-compose.yaml file.

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