mirror of
https://github.com/gravitl/netmaker.git
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190 lines
6.6 KiB
Bash
190 lines
6.6 KiB
Bash
#!/usr/bin/env bash
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# Netmaker CI helper: bring WireGuard up/down and manage ephemeral client lifecycle.
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# Subcommands:
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# up - fetch config, capture Client-ID, bring interface up, save state
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# down - bring interface down, delete local conf, delete client via API
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#
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# Env vars (can be overridden by flags):
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# NETMAKER_BASE_URL (required) e.g. https://nm.example.com or pass --base-url
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# NETMAKER_NETWORK (required) e.g. corpnet or pass --network
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# NETMAKER_API_JWT (required) Bearer token or pass --jwt
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# WG_IFACE (default netmaker) or pass --iface
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# WG_CONF_DIR (default /etc/wireguard) or pass --confdir
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# NETMAKER_STATE_FILE (default RUNNER_TEMP or /tmp)
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# You may also pass --client-id on `down` to avoid relying on the state file.
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set -euo pipefail
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# ---------- defaults ----------
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WG_IFACE="${WG_IFACE:-netmaker}"
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WG_CONF_DIR="${WG_CONF_DIR:-/etc/wireguard}"
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SUBCMD=""
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CLIENT_ID_OVERRIDE=""
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usage() {
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cat <<USAGE
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Usage:
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$0 up [--iface IFACE] [--confdir DIR] [--base-url URL] [--network NET] [--jwt TOKEN]
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$0 down [--iface IFACE] [--confdir DIR] [--base-url URL] [--network NET] [--jwt TOKEN] [--client-id ID]
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Flags override env vars. Env vars documented at top of the script.
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Examples:
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NETMAKER_BASE_URL=https://nm.example.com NETMAKER_NETWORK=corpnet NETMAKER_API_JWT=... $0 up
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$0 down --base-url https://nm.example.com --network corpnet --jwt ... --client-id icy-water
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USAGE
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}
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# ---------- arg parse ----------
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if [[ $# -lt 1 ]]; then usage; exit 2; fi
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SUBCMD="$1"; shift || true
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while [[ $# -gt 0 ]]; do
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case "$1" in
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--iface) WG_IFACE="$2"; shift 2;;
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--confdir) WG_CONF_DIR="$2"; shift 2;;
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--base-url) NETMAKER_BASE_URL="$2"; shift 2;;
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--network) NETMAKER_NETWORK="$2"; shift 2;;
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--jwt) NETMAKER_API_JWT="$2"; shift 2;;
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--client-id) CLIENT_ID_OVERRIDE="$2"; shift 2;;
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-h|--help) usage; exit 0;;
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*) echo "Unknown arg: $1" >&2; usage; exit 2;;
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esac
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done
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STATE_FILE="${NETMAKER_STATE_FILE:-${RUNNER_TEMP:-/tmp}/netmaker_ci_${WG_IFACE}.env}"
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require_env() {
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: "${NETMAKER_BASE_URL:?ERROR: NETMAKER_BASE_URL not set}"
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: "${NETMAKER_NETWORK:?ERROR: NETMAKER_NETWORK not set}"
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: "${NETMAKER_API_JWT:?ERROR: NETMAKER_API_JWT not set}"
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}
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install_deps() {
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echo "[*] Checking dependencies ..."
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local need=(curl jq wg-quick ip)
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local miss=()
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for b in "${need[@]}"; do command -v "$b" >/dev/null 2>&1 || miss+=("$b"); done
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if [[ ${#miss[@]} -eq 0 ]]; then
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echo "[*] All dependencies present."
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return
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fi
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echo "[*] Installing missing deps: ${miss[*]}"
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if command -v apt-get >/dev/null 2>&1; then
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sudo apt-get update -y
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sudo apt-get install -y wireguard-tools jq curl iproute2 resolvconf
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elif command -v yum >/dev/null 2>&1; then
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sudo yum install -y wireguard-tools jq curl iproute iproute-tc
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elif command -v dnf >/dev/null 2>&1; then
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sudo dnf install -y wireguard-tools jq curl iproute
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else
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echo "ERROR: no supported package manager found; install: curl jq wireguard-tools iproute" >&2
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exit 1
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fi
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}
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do_up() {
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require_env
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install_deps
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local ep="${NETMAKER_BASE_URL}/api/v1/client_conf/${NETMAKER_NETWORK}"
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local tmp_conf="/tmp/${WG_IFACE}.conf"
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local tmp_hdr="/tmp/${WG_IFACE}.headers"
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echo "[*] Requesting client config: ${ep}"
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# Optional headers
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declare -a hdrs
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hdrs=(-H "Authorization: Bearer ${NETMAKER_API_JWT}")
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[[ -n "${NM_CLIENT_LABEL:-}" ]] && hdrs+=(-H "X-NM-Client-Label: ${NM_CLIENT_LABEL}")
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[[ -n "${NM_REQUESTED_NAME:-}" ]] && hdrs+=(-H "X-NM-Requested-Name: ${NM_REQUESTED_NAME}")
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local code
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code="$(curl -sS -L --dump-header "${tmp_hdr}" -w '%{http_code}' -o "${tmp_conf}" "${hdrs[@]}" "${ep}")"
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if [[ "${code}" != "200" ]]; then
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echo "ERROR: client_conf HTTP ${code}" >&2
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curl -sS -L "${hdrs[@]}" "${ep}" | head -c 400 >&2 || true
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exit 1
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fi
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grep -q "^\[Interface\]" "${tmp_conf}" || { echo "ERROR: not a WireGuard conf"; head -n 20 "${tmp_conf}"; exit 1; }
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# --- Extract Client-ID (one-liner, trim spaces/quotes) ---
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local client_id
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client_id="$(grep -i '^Client-ID:' "${tmp_hdr}" | head -n1 | cut -d: -f2- | tr -d '\r' | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//' -e 's/^"//; s/"$//' -e "s/^'//; s/'$//")"
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if [[ -z "${client_id}" ]]; then
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echo "ERROR: Client-ID header missing in response; cannot manage lifecycle." >&2
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exit 1
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fi
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echo "[*] Client-ID: ${client_id}"
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# Optional marker
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if ! grep -q "^#interface-name=" "${tmp_conf}"; then
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echo "#interface-name=${WG_IFACE}" | cat - "${tmp_conf}" > "${tmp_conf}.tmp" && mv "${tmp_conf}.tmp" "${tmp_conf}"
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fi
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# Install & bring up
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sudo mkdir -p "${WG_CONF_DIR}"
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sudo mv "${tmp_conf}" "${WG_CONF_DIR}/${WG_IFACE}.conf"
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sudo chmod 600 "${WG_CONF_DIR}/${WG_IFACE}.conf"
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echo "[*] Bringing up ${WG_IFACE} ..."
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sudo wg-quick up "${WG_IFACE}"
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echo "==== ${WG_IFACE} is up ===="
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ip addr show "${WG_IFACE}" || true
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wg show "${WG_IFACE}" || true
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# Persist state
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cat > "${STATE_FILE}" <<EOF
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NETMAKER_BASE_URL='${NETMAKER_BASE_URL}'
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NETMAKER_NETWORK='${NETMAKER_NETWORK}'
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NETMAKER_API_JWT='${NETMAKER_API_JWT}'
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WG_IFACE='${WG_IFACE}'
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WG_CONF_DIR='${WG_CONF_DIR}'
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CLIENT_ID='${client_id}'
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EOF
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chmod 600 "${STATE_FILE}"
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echo "[*] Saved state: ${STATE_FILE}"
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}
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do_down() {
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# Load state if present; flags/env can still override
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if [[ -f "${STATE_FILE}" ]]; then
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# shellcheck disable=SC1090
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source "${STATE_FILE}"
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fi
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require_env
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local client_id="${CLIENT_ID_OVERRIDE:-${CLIENT_ID:-}}"
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echo "[*] Bringing down ${WG_IFACE} ..."
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sudo wg-quick down "${WG_IFACE}" || echo "WARN: wg-quick down failed (already down?)."
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# Remove local conf
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if [[ -f "${WG_CONF_DIR}/${WG_IFACE}.conf" ]]; then
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sudo shred -u "${WG_CONF_DIR}/${WG_IFACE}.conf" 2>/dev/null || sudo rm -f "${WG_CONF_DIR}/${WG_IFACE}.conf"
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fi
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# Delete ephemeral client on server (if we know its ID)
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if [[ -n "${client_id}" ]]; then
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local del_ep="${NETMAKER_BASE_URL}/api/extclients/${NETMAKER_NETWORK}/${client_id}"
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echo "[*] Deleting client: DELETE ${del_ep}"
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local http
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http="$(curl -sS -o /dev/null -w '%{http_code}' -X DELETE -H "Authorization: Bearer ${NETMAKER_API_JWT}" "${del_ep}")"
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if [[ "${http}" =~ ^20[0-9]$ ]]; then
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echo "[*] Client deleted (HTTP ${http})."
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else
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echo "WARN: deletion returned HTTP ${http}; verify server state."
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fi
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else
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echo "WARN: client id not known (missing --client-id and state file); skipping server delete."
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fi
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rm -f "${STATE_FILE}" || true
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echo "[*] Teardown finished."
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}
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case "${SUBCMD}" in
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up) do_up ;;
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down) do_down ;;
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*) usage; exit 2 ;;
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esac
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