mirror of
https://github.com/tdurieux/anonymous_github.git
synced 2026-05-15 22:48:00 +02:00
tdurieux
06a098fba7
- Multi-stage Dockerfile with BuildKit npm cache mounts and a separate prod-deps stage so source edits don't reinstall or prune. - Tighter .dockerignore to shrink build context. - Healthchecks: add start_period and tighten interval/retries so containers report healthy as soon as the process is actually ready instead of after a full polling interval. - Move recoverStuckPreparing() off the startup critical path; the recovery sweep now runs in the background after app.listen. - depends_on uses condition: service_healthy and the obsolete compose 'version' key is gone. - New scripts/build.sh + scripts/deploy.sh: deploy.sh builds, exits early if the image is unchanged, runs a blue/green streamer swap (scale to 2N, wait healthy in parallel, drop olds), then recreates the API with --no-deps to avoid compose's depends_on re-poll.
95 lines
2.9 KiB
Bash
Executable File
95 lines
2.9 KiB
Bash
Executable File
#!/usr/bin/env bash
|
||
# Zero-downtime redeploy:
|
||
# build → blue/green streamer swap → recreate API.
|
||
# Skips everything if the rebuilt image hasn't changed (FORCE=1 to override).
|
||
set -euo pipefail
|
||
cd "$(dirname "$0")/.."
|
||
|
||
export DOCKER_BUILDKIT=1
|
||
export COMPOSE_DOCKER_CLI_BUILD=1
|
||
|
||
IMAGE="${IMAGE:-tdurieux/anonymous_github:v2}"
|
||
REPLICAS="${STREAMER_REPLICAS:-4}"
|
||
TIMEOUT="${HEALTH_TIMEOUT:-90}"
|
||
FORCE="${FORCE:-0}"
|
||
|
||
log() { printf '==> %s\n' "$*"; }
|
||
warn() { printf '!! %s\n' "$*" >&2; }
|
||
|
||
image_id() { docker image inspect --format '{{.Id}}' "$1" 2>/dev/null || true; }
|
||
|
||
wait_healthy() {
|
||
local name="$1" waited=0 status
|
||
while (( waited < TIMEOUT )); do
|
||
status="$(docker inspect -f \
|
||
'{{if .State.Health}}{{.State.Health.Status}}{{else if .State.Running}}running{{else}}stopped{{end}}' \
|
||
"$name" 2>/dev/null || echo missing)"
|
||
[[ $status == healthy || $status == running ]] && return 0
|
||
sleep 2; waited=$((waited + 2))
|
||
done
|
||
warn "$name not healthy after ${TIMEOUT}s (status=$status)"
|
||
return 1
|
||
}
|
||
|
||
list_streamers() {
|
||
docker compose ps --status running --format '{{.Name}}' streamer 2>/dev/null
|
||
}
|
||
|
||
# 1. Build
|
||
log "Building image"
|
||
before="$(image_id "$IMAGE")"
|
||
docker compose build anonymous_github
|
||
after="$(image_id "$IMAGE")"
|
||
|
||
# 2. Cold start
|
||
mapfile -t olds < <(list_streamers)
|
||
if [[ ${#olds[@]} -eq 0 ]]; then
|
||
log "Cold start — bringing the whole stack up"
|
||
docker compose up -d --remove-orphans
|
||
docker compose ps
|
||
exit 0
|
||
fi
|
||
|
||
# 3. No-op if image unchanged
|
||
if [[ -n $before && $before == "$after" && $FORCE != 1 ]]; then
|
||
log "Image unchanged — nothing to deploy (FORCE=1 to override)"
|
||
docker compose ps
|
||
exit 0
|
||
fi
|
||
|
||
# 4. Blue/green streamer swap
|
||
log "Swapping streamer (${#olds[@]} old → ${REPLICAS} new)"
|
||
docker compose up -d --no-deps --no-recreate \
|
||
--scale "streamer=$((${#olds[@]} + REPLICAS))" streamer >/dev/null
|
||
|
||
# Anything not in $olds is new.
|
||
declare -A was_old=()
|
||
for o in "${olds[@]}"; do was_old[$o]=1; done
|
||
news=()
|
||
while IFS= read -r n; do
|
||
[[ -n $n && -z ${was_old[$n]:-} ]] && news+=("$n")
|
||
done < <(list_streamers)
|
||
|
||
# Wait for all new replicas to be healthy in parallel.
|
||
pids=()
|
||
for n in "${news[@]}"; do wait_healthy "$n" & pids+=($!); done
|
||
fail=0
|
||
for p in "${pids[@]}"; do wait "$p" || fail=1; done
|
||
if [[ $fail == 1 ]]; then
|
||
warn "new replicas unhealthy — keeping olds in place"
|
||
exit 1
|
||
fi
|
||
|
||
# Drop olds and reconcile scale.
|
||
docker rm -f "${olds[@]}" >/dev/null
|
||
docker compose up -d --no-deps --no-recreate --scale "streamer=${REPLICAS}" streamer >/dev/null
|
||
|
||
# 5. Recreate API. --no-deps: we already manage every dependency above,
|
||
# skipping compose's own depends_on health re-poll (~5–10s).
|
||
log "Recreating API"
|
||
docker compose up -d --no-deps --remove-orphans anonymous_github
|
||
api="$(docker compose ps -q anonymous_github | head -1)"
|
||
[[ -n $api ]] && wait_healthy "$api" || true
|
||
|
||
docker compose ps
|