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implement central deploy lock and use in tar plugin

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This commit is contained in:
Michael Hobbs
2016-06-17 15:25:46 -07:00
parent 2ece0e1bf8
commit 4f8c1b64c9
5 changed files with 45 additions and 40 deletions
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27
plugins/common/functions
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@@ -820,3 +820,30 @@ merge_dedupe_list() {
local merged_list="$(tr "$delimiter" $'\n' <<< "$input_lists" | sort | uniq | xargs)"
echo "$merged_list"
}
acquire_app_deploy_lock() {
declare desc="acquire advisory lock for use in git/tar deploys"
local APP="$1"; verify_app_name "$APP"
local APP_DEPLOY_LOCK_FD="200"
local APP_DEPLOY_LOCK_FILE="$DOKKU_ROOT/$APP/.deploy.lock"
local APP_DEPLOY_LOCK_MSG="$APP is currently being deployed. Waiting..."
local SHOW_MSG=true
eval "exec $APP_DEPLOY_LOCK_FD>$APP_DEPLOY_LOCK_FILE"
while [[ $(flock -n "$APP_DEPLOY_LOCK_FD" &>/dev/null ; echo $?) -ne 0 ]]; do
if [[ "$SHOW_MSG" == "true" ]]; then
echo "$APP_DEPLOY_LOCK_MSG"
SHOW_MSG=false
fi
sleep 1
done
}
release_app_deploy_lock() {
declare desc="release advisory lock used in git/tar deploys"
local APP="$1"; verify_app_name "$APP"
local APP_DEPLOY_LOCK_FD="200"
local APP_DEPLOY_LOCK_FILE="$DOKKU_ROOT/$APP/.deploy.lock"
flock -u "$APP_DEPLOY_LOCK_FD" && rm -f "$APP_DEPLOY_LOCK_FILE" &> /dev/null
}