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Fix rollout failing when existing containers are in exited state #62

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Fix rollout failing when existing containers are in exited state #62

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bc68c81
Update docker-rollout
Fikralaksana Mar 3, 2026
b77cd4b
Replace jq with POSIX-only container state detection
fikrapdso May 19, 2026
1b6fb2f
Replace only stopped replicas; preserve running containers
fikrapdso May 19, 2026
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17 changes: 16 additions & 1 deletion docker-rollout
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Original file line number Diff line number Diff line change
Expand Up @@ -84,12 +84,27 @@ scale() {

main() {
# shellcheck disable=SC2086 # COMPOSE_FILES and ENV_FILES must be unquoted to allow multiple files
if [ -z "$($COMPOSE_COMMAND $COMPOSE_FILES $ENV_FILES ps --quiet "$SERVICE")" ]; then
CONTAINERS_JSON=$($COMPOSE_COMMAND $COMPOSE_FILES $ENV_FILES ps -a --format json "$SERVICE")

# Run the original script when no containers exist
if [ -z "$($COMPOSE_COMMAND $COMPOSE_FILES $ENV_FILES ps --quiet "$SERVICE")" ] && [ "$CONTAINERS_JSON" = "[]" ]; then
echo "==> Service '$SERVICE' is not running. Starting the service."
$COMPOSE_COMMAND $COMPOSE_FILES $ENV_FILES up --detach --no-recreate "$SERVICE"
exit 0
fi

# Run with --no-recreate param conditionally based on container state
echo "$CONTAINERS_JSON" | \
jq -r '.[] | "\(.ID) \(.Service) \(.State)"' | \
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while read -r id service state; do
echo "==> Service '$SERVICE' is not running. Starting the service. exit, $state"
if [ "$state" == "exited" ]; then
$COMPOSE_COMMAND $COMPOSE_FILES $ENV_FILES up --detach "$service"
fi
$COMPOSE_COMMAND $COMPOSE_FILES $ENV_FILES up --detach --no-recreate "$service"
exit 0
done

# shellcheck disable=SC2086 # COMPOSE_FILES and ENV_FILES must be unquoted to allow multiple files
OLD_CONTAINER_IDS_STRING=$($COMPOSE_COMMAND $COMPOSE_FILES $ENV_FILES ps --quiet "$SERVICE" | tr '\n' '|' | sed 's/|$//')
OLD_CONTAINER_IDS=$(echo "$OLD_CONTAINER_IDS_STRING" | tr '|' ' ')
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