feat: sys autoupdate
This commit is contained in:
Clément Désiles
@@ -0,0 +1,316 @@
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#!/usr/bin/env bash
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set -euo pipefail
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NTFY_SERVER="{{ sys_autoupdate_ntfy_server }}"
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NTFY_TOPIC="{{ sys_autoupdate_ntfy_topic }}"
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{% if sys_autoupdate_ntfy_token is defined %}
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NTFY_TOKEN="{{ sys_autoupdate_ntfy_token }}"
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{% else %}
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NTFY_TOKEN=""
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{% endif %}
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PODMAN_ENABLED="{{ sys_autoupdate_podman_enabled | lower }}"
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PODMAN_PROJECTS_DIR="{{ sys_autoupdate_podman_projects_dir }}"
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PODMAN_USER="{{ ansible_user }}"
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PODMAN_PRUNE_UNTIL="{{ sys_autoupdate_podman_prune_until }}"
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DISTRO_NAME="{{ sys_autoupdate_distro_name }}"
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OS_KEY="{{ sys_autoupdate_os_key }}"
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ALLOW_DOWNGRADE="{{ sys_autoupdate_allow_downgrade | lower }}"
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HAS_NEWS_CHECK="{{ sys_autoupdate_has_news_check | lower }}"
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CHECK_NEWS="{{ sys_autoupdate_check_news | lower }}"
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NEWS_HOURS="{{ sys_autoupdate_news_hours }}"
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NEWS_URL="{{ sys_autoupdate_news_url }}"
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{% raw %}
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log() {
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1"
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}
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send_notification() {
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local title="$1"
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local message="$2"
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local tags="$3"
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local priority="${4:-default}"
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local auth_args=()
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if [[ -n "$NTFY_TOKEN" ]]; then
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auth_args=(-H "Authorization: Bearer $NTFY_TOKEN")
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fi
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curl -s --max-time 15 \
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"${auth_args[@]}" \
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-H "Title: $title" \
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-H "Tags: $tags" \
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-H "Priority: $priority" \
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-d "$message" \
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"$NTFY_SERVER/$NTFY_TOPIC" || log "WARNING: Failed to send notification"
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}
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# Per-OS dispatchers: keep all package-manager specifics in one place,
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# avoid eval on Ansible-injected strings.
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check_pending_updates() {
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case "$OS_KEY" in
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archlinux)
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# checkupdates (pacman-contrib) exits 2 when no updates are pending;
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# swallow non-zero so set -e doesn't abort the script.
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checkupdates 2>/dev/null || true
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;;
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debian)
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apt-get update -qq >/dev/null 2>&1
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apt-get -s dist-upgrade 2>/dev/null | grep '^Inst ' || true
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;;
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*)
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log "ERROR: Unsupported OS_KEY='$OS_KEY'"
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return 1
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;;
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esac
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}
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apply_upgrade() {
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case "$OS_KEY" in
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archlinux)
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if [[ "$ALLOW_DOWNGRADE" == "true" ]]; then
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pacman -Syu --noconfirm --allow-downgrade
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else
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pacman -Syu --noconfirm
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fi
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;;
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debian)
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local -a apt_args=(dist-upgrade -y)
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if [[ "$ALLOW_DOWNGRADE" == "true" ]]; then
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apt_args+=(--allow-downgrades)
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fi
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DEBIAN_FRONTEND=noninteractive apt-get "${apt_args[@]}"
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;;
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*)
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log "ERROR: Unsupported OS_KEY='$OS_KEY'"
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return 1
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;;
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esac
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}
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check_distro_news() {
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local hours="${1:-24}"
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local cutoff_epoch
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cutoff_epoch=$(date -d "$hours hours ago" +%s 2>/dev/null || date -v-"${hours}"H +%s 2>/dev/null || echo "")
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if [[ -z "$cutoff_epoch" ]]; then
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log "WARNING: Cannot determine cutoff date, skipping news check"
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return 0
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fi
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local rss_feed
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rss_feed=$(curl -s --max-time 10 "${NEWS_URL}feed/" 2>/dev/null || echo "")
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if [[ -z "$rss_feed" ]]; then
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log "WARNING: Failed to fetch news feed, skipping news check"
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return 0
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fi
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# Parse RSS items: extract title and pubDate pairs
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local recent_titles=()
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local titles dates
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titles=$(echo "$rss_feed" | grep -oP '(?<=<title>).*?(?=</title>)' | tail -n +2 | head -10 || echo "")
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dates=$(echo "$rss_feed" | grep -oP '(?<=<pubDate>).*?(?=</pubDate>)' | head -10 || echo "")
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if [[ -z "$titles" || -z "$dates" ]]; then
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log "No news items found in feed"
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return 0
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fi
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local i=0
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while IFS= read -r pub_date; do
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local item_epoch
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item_epoch=$(date -d "$pub_date" +%s 2>/dev/null || echo "0")
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if [[ "$item_epoch" -gt "$cutoff_epoch" ]]; then
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local title
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title=$(echo "$titles" | sed -n "$((i + 1))p")
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recent_titles+=("$title")
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fi
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((i++)) || true
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done <<< "$dates"
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if [[ ${#recent_titles[@]} -gt 0 ]]; then
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local news_list
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news_list=$(printf '- %s\n' "${recent_titles[@]}")
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log "Recent $DISTRO_NAME news detected (${#recent_titles[@]} items within ${hours}h):"
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log "$news_list"
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send_notification \
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"$(hostname): Manual Intervention Required" \
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"Recent $DISTRO_NAME news (last ${hours}h). Review before updating.\n\n${news_list}\n\n$NEWS_URL" \
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"warning" \
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"high"
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return 1
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fi
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log "No recent $DISTRO_NAME news (last ${hours}h)"
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return 0
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}
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update_system() {
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log "Checking for pending updates..."
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local pending_updates
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pending_updates=$(check_pending_updates)
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if [[ -z "$pending_updates" ]]; then
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log "No system updates available"
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return 0
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fi
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local update_count
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update_count=$(echo "$pending_updates" | wc -l | tr -d ' ')
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log "Found $update_count updates pending"
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if apply_upgrade 2>&1; then
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log "System updates completed successfully ($update_count packages)"
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send_notification \
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"$(hostname): System Update Success" \
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"$update_count packages updated" \
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"white_check_mark" \
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"default"
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else
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log "ERROR: System update failed"
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send_notification \
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"$(hostname): System Update FAILED" \
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"Update failed. Check: journalctl -u sys-autoupdate.service" \
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"x" \
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"urgent"
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return 1
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fi
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}
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# Run a command as the rootless Podman user with a proper login environment.
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# `runuser -l` invokes a login shell, so XDG_RUNTIME_DIR, DBUS_SESSION_BUS_ADDRESS,
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# PATH, and HOME are set correctly for rootless Podman state under
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# ~/.local/share/containers. Plain `sudo -u` does not set these and breaks
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# rootless storage discovery and user-systemd interaction.
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as_podman_user() {
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runuser -l "$PODMAN_USER" -c "$(printf '%q ' "$@")"
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}
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update_podman_images() {
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log "Checking for Podman image updates..."
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local compose_files
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compose_files=$(find "$PODMAN_PROJECTS_DIR" -maxdepth 2 -name 'docker-compose.yml' -type f 2>/dev/null || echo "")
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if [[ -z "$compose_files" ]]; then
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log "No docker-compose.yml files found in $PODMAN_PROJECTS_DIR"
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return 0
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fi
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local updated_services=()
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while IFS= read -r compose_file; do
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local project_dir
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project_dir=$(dirname "$compose_file")
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local project_name
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project_name=$(basename "$project_dir")
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log "Checking project $project_name..."
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# Capture image digests before pull. `podman-compose images` lists the
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# images referenced by the compose file with their current local IDs.
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# Comparing pre/post sets is more reliable than parsing pull stdout.
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local digests_before
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digests_before=$(as_podman_user podman-compose -f "$compose_file" images --format '{{.ID}}' 2>/dev/null | sort -u || echo "")
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local pull_output
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if ! pull_output=$(as_podman_user podman-compose -f "$compose_file" pull 2>&1); then
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log "ERROR: Pull failed for $project_name"
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log "$pull_output"
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local pull_tail
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pull_tail=$(echo "$pull_output" | tail -n 5)
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send_notification \
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"$(hostname): Podman Pull Failed ($project_name)" \
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"Failed to pull images.\n\nLast output:\n$pull_tail\n\nFull log: journalctl -u sys-autoupdate.service" \
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"x" \
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"high"
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continue
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fi
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local digests_after
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digests_after=$(as_podman_user podman-compose -f "$compose_file" images --format '{{.ID}}' 2>/dev/null | sort -u || echo "")
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if [[ "$digests_before" == "$digests_after" ]]; then
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log "Project $project_name: all images up to date"
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continue
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fi
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log "New images for $project_name, recreating containers..."
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local up_output
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local up_status=0
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up_output=$(as_podman_user podman-compose -f "$compose_file" up -d 2>&1) || up_status=$?
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if [[ "$up_status" -eq 0 ]]; then
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log "Project $project_name updated successfully"
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updated_services+=("$project_name")
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else
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log "ERROR: Failed to restart project $project_name (exit $up_status)"
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log "$up_output"
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# Probe stack state: are containers running despite the non-zero exit?
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# podman-compose sometimes returns non-zero for partial successes.
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local running_count
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running_count=$(as_podman_user podman ps --filter "label=com.docker.compose.project=$project_name" --format '{{.ID}}' 2>/dev/null | wc -l | tr -d ' ' || echo "0")
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# Tail of stderr/stdout for the notification body (truncate to keep ntfy payload small).
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local up_tail
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up_tail=$(echo "$up_output" | tail -n 5)
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send_notification \
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"$(hostname): Podman Restart FAILED ($project_name)" \
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"up -d exit=$up_status, $running_count container(s) running.\n\nLast output:\n$up_tail\n\nFull log: journalctl -u sys-autoupdate.service" \
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"x" \
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"urgent"
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fi
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done <<< "$compose_files"
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# Prune images. Always remove dangling; optionally remove tagged images
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# older than PODMAN_PRUNE_UNTIL to bound disk usage from accumulated
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# historical tags (compose pulls don't auto-clean prior versions).
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log "Pruning unused Podman images..."
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if [[ -n "$PODMAN_PRUNE_UNTIL" ]]; then
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as_podman_user podman image prune -af --filter "until=$PODMAN_PRUNE_UNTIL" 2>&1 \
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|| log "WARNING: Image prune (until=$PODMAN_PRUNE_UNTIL) failed"
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else
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as_podman_user podman image prune -f 2>&1 || log "WARNING: Image prune failed"
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fi
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if [[ ${#updated_services[@]} -gt 0 ]]; then
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local service_list
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service_list=$(printf '%s, ' "${updated_services[@]}")
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service_list="${service_list%, }"
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send_notification \
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"$(hostname): Podman Images Updated" \
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"${#updated_services[@]} project(s) updated: $service_list" \
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"whale" \
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"default"
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else
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log "All Podman images are up to date"
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fi
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}
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main() {
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log "=== Starting $DISTRO_NAME auto-update run ==="
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if [[ "$HAS_NEWS_CHECK" == "true" && "$CHECK_NEWS" == "true" ]]; then
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log "Checking for recent $DISTRO_NAME news..."
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if ! check_distro_news "$NEWS_HOURS"; then
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log "ABORTED: Recent $DISTRO_NAME news requires manual intervention"
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exit 1
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fi
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fi
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update_system
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if [[ "$PODMAN_ENABLED" == "true" ]]; then
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update_podman_images
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fi
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log "=== Auto-update run complete ==="
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}
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main "$@"
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{% endraw %}
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