authentik/lifecycle/ak

#!/usr/bin/env -S bash
set -e -o pipefail
MODE_FILE="${TMPDIR}/authentik-mode"

if [[ -z "${PROMETHEUS_MULTIPROC_DIR}" ]]; then
    export PROMETHEUS_MULTIPROC_DIR="${TMPDIR:-/tmp}/authentik_prometheus_tmp"
fi

function log {
    printf '{"event": "%s", "level": "info", "logger": "bootstrap"}\n' "$@" >&2
}

function wait_for_db {
    python -m lifecycle.wait_for_db
    log "Bootstrap completed"
}

function check_if_root {
    if [[ $EUID -ne 0 ]]; then
        log "Not running as root, disabling permission fixes"
        exec $1
        return
    fi
    SOCKET="/var/run/docker.sock"
    GROUP="authentik"
    if [[ -e "$SOCKET" ]]; then
        # Get group ID of the docker socket, so we can create a matching group and
        # add ourselves to it
        DOCKER_GID=$(stat -c '%g' $SOCKET)
        # Ensure group for the id exists
        getent group $DOCKER_GID || groupadd -f -g $DOCKER_GID docker
        usermod -a -G $DOCKER_GID authentik
        # since the name of the group might not be docker, we need to lookup the group id
        GROUP_NAME=$(getent group $DOCKER_GID | sed 's/:/\n/g' | head -1)
        GROUP="authentik:${GROUP_NAME}"
    fi
    # Fix permissions of certs and media
    chown -R authentik:authentik /data /certs "${PROMETHEUS_MULTIPROC_DIR}"
    chmod ug+rwx /data
    chmod ug+rx /certs
    exec chpst -u authentik:$GROUP env HOME=/authentik $1
}

function run_authentik {
    if [[ -x "$(command -v authentik)" ]]; then
        exec authentik $@
    else
        exec go run -v ./cmd/server/ $@
    fi
}

function set_mode {
    echo $1 >$MODE_FILE
    trap cleanup EXIT
}

function cleanup {
    rm -f ${MODE_FILE}
}

function prepare_debug {
    # Only attempt to install debug dependencies if we're running in a container
    if [ ! -d /ak-root ]; then
        return
    fi
    export DEBIAN_FRONTEND=noninteractive
    apt-get update
    apt-get install -y --no-install-recommends krb5-kdc krb5-user krb5-admin-server libkrb5-dev gcc
    source "${VENV_PATH}/bin/activate"
    uv sync --active --frozen
    touch /unittest.xml
    chown authentik:authentik /unittest.xml
}

mkdir -p "${PROMETHEUS_MULTIPROC_DIR}"

if [[ "$(python -m authentik.lib.config debugger 2>/dev/null)" == "True" ]]; then
    prepare_debug
fi

if [[ "$1" == "server" ]]; then
    set_mode "server"
    run_authentik
elif [[ "$1" == "worker" ]]; then
    set_mode "worker"
    shift
    check_if_root "python -m manage worker --pid-file ${TMPDIR}/authentik-worker.pid $@"
elif [[ "$1" == "bash" ]]; then
    /bin/bash
elif [[ "$1" == "test-all" ]]; then
    prepare_debug
    chmod 777 /root
    check_if_root "python -m manage test authentik"
elif [[ "$1" == "healthcheck" ]]; then
    run_authentik healthcheck $(cat $MODE_FILE)
elif [[ "$1" == "dump_config" ]]; then
    shift
    exec python -m authentik.lib.config $@
elif [[ "$1" == "debug" ]]; then
    exec sleep infinity
else
    exec python -m manage "$@"
fi