fcb68cc139
In order to avoid unnecessary operations, the `update-preview-server.sh`
script, that is used to update the PR preview server Docker container,
will only try to update the Docker container if either any files in the
`aio/aio-builds-setup/` directory have changed since the last update or
if a previous update failed. A failed previous update is detected by
checking whether the temporary `aio-builds:provisional` Docker image
still exists. This temporary image is created during the update
operation and is renamed to `aio-builds:latest` if the update goes well.
Previously, the update script was not able to detect a previous failed
attempt if the operation failed before creating the
`aio-builds:provisional` Docker image, such as if the `create-image.sh`
script failed. This could lead to a situation where the preview server
Docker container would not be updated after a failed attempt.
This commit improves the logic for detecting failed attempts to account
for this type of failures. It does this by not removing an older
`aio-builds:provisional` Docker image until a new one is successfully
created.
NOTE: While this is not full-proof, it is an improvement as it
eliminates a certain kind of failures.
PR Close #37015
72 lines
2.5 KiB
Bash
Executable File
72 lines
2.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -eux -o pipefail
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exec 3>&1
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echo -e "\n\n[`date`] - Updating the preview server..."
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# Input
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readonly HOST_REPO_DIR=$1
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readonly HOST_SECRETS_DIR=$2
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readonly HOST_BUILDS_DIR=$3
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readonly HOST_LOCALCERTS_DIR=$4
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readonly HOST_LOGS_DIR=$5
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# Constants
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readonly PROVISIONAL_TAG=provisional
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readonly PROVISIONAL_IMAGE_NAME=aio-builds:$PROVISIONAL_TAG
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readonly LATEST_IMAGE_NAME=aio-builds:latest
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readonly CONTAINER_NAME=aio
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# Run
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(
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cd "$HOST_REPO_DIR"
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readonly lastDeployedCommit=$(git rev-parse HEAD)
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echo "Currently at commit $lastDeployedCommit."
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# Pull latest master from origin.
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git pull origin master
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# Do not update the server unless files inside `aio-builds-setup/` have changed
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# or the last attempt failed (identified by the provisional image still being around).
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readonly relevantChangedFilesCount=$(git diff --name-only $lastDeployedCommit...HEAD | grep -P "^aio/aio-builds-setup/" | wc -l)
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readonly lastAttemptFailed=$(sudo docker image ls | grep "$PROVISIONAL_TAG" >> /dev/fd/3 && echo "true" || echo "false")
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if [[ $relevantChangedFilesCount -eq 0 ]] && [[ "$lastAttemptFailed" != "true" ]]; then
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echo "Skipping update because no relevant files have been touched."
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exit 0
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fi
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# Create and verify a new docker image.
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aio/aio-builds-setup/scripts/create-image.sh "$PROVISIONAL_IMAGE_NAME" --no-cache
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readonly imageVerified=$(sudo docker run --dns 127.0.0.1 --rm --volume $HOST_SECRETS_DIR:/aio-secrets:ro "$PROVISIONAL_IMAGE_NAME" /bin/bash -c "aio-init && aio-health-check && aio-verify-setup" >> /dev/fd/3 && echo "true" || echo "false")
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if [[ "$imageVerified" != "true" ]]; then
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echo "Failed to verify new docker image. Aborting update!"
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exit 1
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fi
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# Remove the old container and replace the docker image.
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sudo docker stop "$CONTAINER_NAME" || true
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sudo docker rm "$CONTAINER_NAME" || true
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sudo docker rmi "$LATEST_IMAGE_NAME" || true
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sudo docker tag "$PROVISIONAL_IMAGE_NAME" "$LATEST_IMAGE_NAME"
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sudo docker rmi "$PROVISIONAL_IMAGE_NAME"
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# Create and start a docker container based on the new image.
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sudo docker run \
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--detach \
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--dns 127.0.0.1 \
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--name "$CONTAINER_NAME" \
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--publish 80:80 \
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--publish 443:443 \
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--restart unless-stopped \
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--volume $HOST_SECRETS_DIR:/aio-secrets:ro \
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--volume $HOST_BUILDS_DIR:/var/www/aio-builds \
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--volume $HOST_LOCALCERTS_DIR:/etc/ssl/localcerts:ro \
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--volume $HOST_LOGS_DIR:/var/log/aio \
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"$LATEST_IMAGE_NAME"
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echo "The new docker image has been successfully deployed."
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)
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