bridgehead/lib/update-bridgehead.sh

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#!/bin/bash
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source lib/functions.sh
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CONFFILE=/etc/bridgehead/$1.conf
if [ ! -e $CONFFILE ]; then
log ERROR "Configuration file $CONFFILE not found."
exit 1
fi
source $CONFFILE
assertVarsNotEmpty SITE_ID || exit 1
export SITE_ID
checkOwner . bridgehead || exit 1
checkOwner /etc/bridgehead bridgehead || exit 1
CREDHELPER="/srv/docker/bridgehead/lib/gitpassword.sh"
# Check git updates
for DIR in /etc/bridgehead $(pwd); do
log "INFO" "Checking for updates to git repo $DIR ..."
if [ "$(git -C $DIR config --get credential.helper)" != "$CREDHELPER" ]; then
log "INFO" "Configuring repo to use bridgehead git credential helper."
git -C $DIR config credential.helper "$CREDHELPER"
fi
old_git_hash="$(git -C $DIR rev-parse --verify HEAD)"
git -C $DIR fetch 2>&1
git -C $DIR pull 2>&1
new_git_hash="$(git -C $DIR rev-parse --verify HEAD)"
git_updated="false"
if [ "$old_git_hash" != "$new_git_hash" ]; then
log "INFO" "Updated git repository in ${DIR} from commit $old_git_hash to $new_git_hash"
# NOTE: Link generation doesn't work on repositories placed at an self-hosted instance of bitbucket.
# See: https://community.atlassian.com/t5/Bitbucket-questions/BitBucket-4-14-diff-between-any-two-commits/qaq-p/632974
git_repository_url="$(git -C $DIR remote get-url origin)"
git_repository_url=${git_repository_url/.git/}
if [ "$( echo $git_repository_url | grep "github.com")" ]; then
# Ensure web link even if ssh is used
git_repository_url="${git_repository_url/git@github.com/https:\/\/github.com\/}"
log "INFO" "You can review all changes on the repository with $git_repository_url/compare/$old_git_hash...$new_git_hash"
elif [ "$( echo $git_repository_url | grep "git.verbis.dkfz.de")" ]; then
git_repository_url="${git_repository_url/ssh:\/\/git@git.verbis.dkfz.de/https:\/\/git.verbis.dkfz.de\/}"
git_repository_url="https://$(echo $git_repository_url | awk -F '@' '{print $2}')"
log "INFO" "You can review all changes on the repository with $git_repository_url/compare?from=$old_git_hash&to=$new_git_hash"
fi
git_updated="true"
fi
done
# Check docker updates
log "INFO" "Checking for updates to running docker images ..."
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docker_updated="false"
for IMAGE in $(docker ps --filter "name=bridgehead" --format {{.Image}}); do
log "INFO" "Checking for Updates of Image: $IMAGE"
if docker pull $IMAGE | grep "Downloaded newer image"; then
log "INFO" "$IMAGE updated."
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docker_updated="true"
fi
done
# If anything is updated, restart service
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if [ $git_updated = "true" ] || [ $docker_updated = "true" ]; then
log "INFO" "Update detected, now restarting bridgehead"
systemctl restart 'bridgehead@*'
else
log "INFO" "Nothing updated, nothing to restart."
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fi
exit 0
# TODO: Print last commit explicit