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Merge pull request #1844 from dokku/mh-named-containers

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named-containers: handle multiple old containers and don't attempt to rename a dead container
This commit is contained in:
Michael Hobbs
2016-01-07 20:19:31 -08:00
parent 30be9b7959 8051fb86e7
commit d98ed122a6
1 changed files with 16 additions and 3 deletions
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19
plugins/named-containers/post-deploy
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@@ -1,16 +1,29 @@
#!/usr/bin/env bash
set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
APP="$1"; APP_ROOT="$DOKKU_ROOT/$APP"
[[ -z $(stat -t "$APP_ROOT"/CONTAINER.* 2>/dev/null) ]] && exit 0
for container in "$APP_ROOT"/CONTAINER.*; do
DYNO=$(echo "$container" | sed -r 's/.*CONTAINER\.(.*)/\1/') || true
NAME="$APP.$DYNO"
PREVIOUS=$(docker ps -a -q -f name="^.?$NAME\$") || true
if [[ -n $PREVIOUS ]]; then
docker rename "$NAME" "$NAME.$(date +%s)" > /dev/null
CURRENT_CONTAINER_ID="$(< $container)"
PREVIOUS_CIDS=$(docker ps -a -q -f name="^.?$NAME\$" | xargs) || true
if [[ -n $PREVIOUS_CIDS ]]; then
dokku_log_info1_quiet "Found previous container(s) ($PREVIOUS_CIDS) named $NAME"
# in case $PREVIOUS_CIDS has more than one entry
for cid in $PREVIOUS_CIDS; do
PREVIOUS_CONTAINER_STATUS=$(docker inspect -f '{{.State.Status}}' "$cid" || echo "dead")
# dead containers cannot be renamed
if [[ "$PREVIOUS_CONTAINER_STATUS" != "dead" ]]; then
CONTAINER_DATE_NAME="$NAME.$(date +%s)"
dokku_log_info2_quiet "renaming container ($cid) ${NAME} to $CONTAINER_DATE_NAME"
docker rename "$NAME" "$CONTAINER_DATE_NAME" > /dev/null
fi
done
fi
ID=$(cat "$container")
CURRENT_NAME=$(docker inspect -f '{{.Name}}' "$ID" | tr -d /)
dokku_log_info2_quiet "renaming container (${ID:0:12}) $CURRENT_NAME to $NAME"
docker rename "$CURRENT_NAME" "$NAME" > /dev/null
done