85 lines
2.6 KiB
Bash
Executable File
85 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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repository="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)"
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expected_repository="$HOME/yawn"
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state_directory="$HOME/.local/state/yawn"
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deployed_revision_file="$state_directory/deployed-revision"
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compose=(docker compose --project-name yawn --project-directory "$repository" --file "$repository/compose.yaml")
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if [[ "$repository" != "$expected_repository" ]]; then
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printf 'Expected the repository at %s, found %s\n' "$expected_repository" "$repository" >&2
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exit 1
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fi
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for command in git docker flock; do
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if ! command -v "$command" >/dev/null 2>&1; then
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printf 'Missing required command: %s\n' "$command" >&2
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exit 1
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fi
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done
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if ! docker compose version >/dev/null 2>&1; then
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printf 'Docker Compose v2 is required.\n' >&2
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exit 1
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fi
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mkdir -p "$state_directory"
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exec 9>"$state_directory/deploy.lock"
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if ! flock -n 9; then
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printf 'Another Yawn deployment is already running.\n'
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exit 0
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fi
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cd "$repository"
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if [[ "$(git branch --show-current)" != "main" ]]; then
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printf 'Deployments must run from the main branch.\n' >&2
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exit 1
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fi
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if [[ -n "$(git status --porcelain --untracked-files=normal)" ]]; then
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printf 'Refusing to deploy a checkout with local changes.\n' >&2
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exit 1
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fi
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printf 'Updating main...\n'
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git fetch origin main
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fetched="$(git rev-parse FETCH_HEAD)"
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git merge --ff-only "$fetched"
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if [[ "$(git rev-parse HEAD)" != "$fetched" ]]; then
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printf 'HEAD does not match origin/main after updating.\n' >&2
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exit 1
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fi
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printf 'Building the production image...\n'
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"${compose[@]}" build --pull yawn
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"${compose[@]}" up -d --remove-orphans yawn
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container="$("${compose[@]}" ps -q yawn)"
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if [[ -z "$container" ]]; then
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printf 'Docker Compose did not create the Yawn container.\n' >&2
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exit 1
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fi
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printf 'Waiting for Yawn to become healthy...\n'
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for _ in {1..60}; do
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status="$(docker inspect --format '{{if .State.Health}}{{.State.Health.Status}}{{else}}{{.State.Status}}{{end}}' "$container")"
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case "$status" in
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healthy)
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temporary_revision="$(mktemp "$state_directory/deployed-revision.XXXXXX")"
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git rev-parse HEAD >"$temporary_revision"
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mv -f -- "$temporary_revision" "$deployed_revision_file"
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printf 'The Yawn container is healthy.\n'
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exit 0
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;;
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unhealthy | exited | dead)
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"${compose[@]}" logs --tail 50 yawn >&2
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exit 1
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;;
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esac
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sleep 2
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done
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printf 'Yawn did not become healthy before the timeout.\n' >&2
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"${compose[@]}" logs --tail 50 yawn >&2
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exit 1
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