111 lines
3.7 KiB
Bash
Executable file
111 lines
3.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -euo pipefail
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CONFIG=/etc/chart-debug.conf
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MAX_LOG_LINES=4000
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if [[ ! -r "$CONFIG" ]]; then
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echo "chart-debug is not configured" >&2
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exit 1
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fi
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# Root-owned configuration written by install-chart-debug.
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# shellcheck source=/dev/null
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source "$CONFIG"
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original=${1:-${SSH_ORIGINAL_COMMAND:-}}
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if [[ -z "$original" || "$original" == *$'\n'* || "$original" == *$'\r'* ]]; then
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echo "usage: logs --since 20m | status | container-state | recent-deploy | capture-read ID | capture-delete ID" >&2
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exit 2
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fi
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read -r -a args <<< "$original"
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logger -t chart-debug -- "user=${SUDO_USER:-${USER:-unknown}} from=${SSH_CONNECTION:-local} command=$original"
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resolve_container() {
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local id name
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local -a matches=()
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while read -r id name; do
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[[ -n "$id" && "$name" =~ $CHART_CONTAINER_PATTERN ]] && matches+=("$id")
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done < <(docker ps --format '{{.ID}} {{.Names}}')
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if [[ ${#matches[@]} -ne 1 ]]; then
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echo "container selector matched ${#matches[@]} running containers" >&2
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exit 3
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fi
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printf '%s' "${matches[0]}"
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}
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redact() {
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sed -E \
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-e 's/(Authorization:[[:space:]]*Bearer[[:space:]]+)[A-Za-z0-9._-]+/\1[REDACTED]/Ig' \
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-e 's/((token|secret|password|api[_-]?key)["=:[:space:]]+)[^,[:space:]"}]+/\1[REDACTED]/Ig'
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}
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valid_capture_id() {
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[[ "$1" =~ ^c-[A-Za-z0-9_-]{12}$ ]]
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}
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case "${args[0]}" in
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logs)
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[[ ${#args[@]} -eq 3 && "${args[1]}" == "--since" ]] || {
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echo "usage: logs --since 20m" >&2; exit 2;
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}
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[[ "${args[2]}" =~ ^[1-9][0-9]*(s|m|h|d)$ ]] || {
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echo "invalid duration" >&2; exit 2;
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}
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container=$(resolve_container)
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docker logs --timestamps --tail "$MAX_LOG_LINES" --since "${args[2]}" "$container" 2>&1 | redact
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;;
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status)
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[[ ${#args[@]} -eq 1 ]] || { echo "usage: status" >&2; exit 2; }
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container=$(resolve_container)
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token=""
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while IFS= read -r entry; do
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[[ "$entry" == CHART_AUTH_TOKEN=* ]] && token=${entry#CHART_AUTH_TOKEN=}
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done < <(docker inspect --format '{{range .Config.Env}}{{println .}}{{end}}' "$container")
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if [[ -n "$token" ]]; then
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[[ "$token" != *$'\n'* && "$token" != *$'\r'* ]] || {
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echo "invalid CHART_AUTH_TOKEN" >&2; exit 4;
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}
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escaped_token=${token//\\/\\\\}
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escaped_token=${escaped_token//\"/\\\"}
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printf 'url = "%s/api/status"\nheader = "X-Chart-Token: %s"\nfail\nsilent\nshow-error\n' \
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"$CHART_PUBLIC_URL" "$escaped_token" | curl --config - | redact
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else
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echo "CHART_AUTH_TOKEN is unavailable" >&2
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exit 4
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fi
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;;
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container-state)
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[[ ${#args[@]} -eq 1 ]] || { echo "usage: container-state" >&2; exit 2; }
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container=$(resolve_container)
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docker inspect --format \
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'name={{.Name}} image={{.Config.Image}} status={{.State.Status}} started={{.State.StartedAt}} restarts={{.RestartCount}} oom={{.State.OOMKilled}} exit={{.State.ExitCode}}' \
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"$container"
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;;
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recent-deploy)
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[[ ${#args[@]} -eq 1 ]] || { echo "usage: recent-deploy" >&2; exit 2; }
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curl -fsS "$CHART_PUBLIC_URL/api/version"
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printf '\n'
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container=$(resolve_container)
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docker inspect --format 'container_started={{.State.StartedAt}} image={{.Config.Image}}' "$container"
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;;
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capture-read)
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[[ ${#args[@]} -eq 2 ]] && valid_capture_id "${args[1]}" || {
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echo "usage: capture-read c-XXXXXXXXXXXX" >&2; exit 2;
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}
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container=$(resolve_container)
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docker exec "$container" base64 "/tmp/chart-captures/${args[1]}.png"
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;;
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capture-delete)
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[[ ${#args[@]} -eq 2 ]] && valid_capture_id "${args[1]}" || {
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echo "usage: capture-delete c-XXXXXXXXXXXX" >&2; exit 2;
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}
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curl -fsS -X DELETE "$CHART_PUBLIC_URL/api/debug/captures/${args[1]}" >/dev/null
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echo "deleted ${args[1]}"
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;;
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*)
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echo "command not allowed" >&2
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exit 2
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;;
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esac
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