ck8s

#!/bin/bash

# This is the main entrypoint to Compliant Kubernetes.

set -e -o pipefail

here="$(dirname "$(readlink -f "$0")")"
# shellcheck source=bin/common.bash
source "${here}/common.bash"

usage() {
    echo "COMMANDS:" 1>&2
    echo "  init [--generate-new-secrets]                     initialize the config path" 1>&2
    echo "  bootstrap <wc|sc>                                 bootstrap the cluster" 1>&2
    echo "  apps <wc|sc> [--sync] [--skip-template-validate]  deploy the applications" 1>&2
    echo "  apply <wc|sc> [--sync] [--skip-template-validate] bootstrap and apps" 1>&2
    echo "  test <wc|sc>                                      test the applications" 1>&2
    echo "  dry-run <wc|sc> [--kubectl]                       runs helmfile diff" 1>&2
    echo "  team add-pgp <fp>                                 add a new PGP key to secrets" 1>&2
    echo "  team remove-pgp <fp>                              remove a PGP key from secrets and rotate the data encryption key" 1>&2
    # TODO: We might want to make this command less visible once we have proper
    #       support for OIDC logins.
    echo "  ops kubectl <wc|sc>                               run kubectl as cluster admin" 1>&2
    echo "  ops helm <wc|sc>                                  run helm as cluster admin" 1>&2
    # TODO: We might want to make this command less visible once we feel
    #       confident that the apply command and migrations are good enough
    #       that direct Helmfile access is not necessary.
    echo "  ops helmfile <wc|sc>                              run helmfile as cluster admin" 1>&2
    echo "  s3cmd [cmd]                                       run s3cmd" 1>&2
    echo "  kubeconfig <user|admin <wc|sc> [cluster_name]>    generate user/admin kubeconfig, stored at CK8S_CONFIG_PATH/user or CK8S_CONFIG_PATH/.state"
    echo "  completion bash                                   output shell completion code for bash" 1>&2
    echo "  validate <wc|sc>                                  validates config files" 1>&2
    echo "  providers                                         lists supported cloud providers" 1>&2
    echo "  flavors                                           lists supported configuration flavors" 1>&2
    exit 1
}

SYNC=""
SKIP=""
KUBECTL=""
GEN_NEW_SECRETS=""

for arg in "$@"; do
  case "$arg" in
    "--skip-template-validate") SKIP="--skip-template-validate" ;;
    "--sync") SYNC="sync" ;;
    "--kubectl") KUBECTL="kubectl" ;;
    "--generate-new-secrets") GEN_NEW_SECRETS="--generate-new-secrets" ;;
  esac
done

case "${1}" in
    init)
        "${here}/init.bash" "${GEN_NEW_SECRETS}"
        ;;
    bootstrap)
        [[ "${2}" =~ ^(wc|sc)$ ]] || usage
        "${here}/bootstrap.bash" "${2}"
        ;;
    apps)
        [[ "${2}" =~ ^(wc|sc)$ ]] || usage
        "${here}/apps.bash" "${2}" "${SKIP}" "${SYNC}"
        ;;
    apply)
        [[ "${2}" =~ ^(wc|sc)$ ]] || usage
        "${here}/bootstrap.bash" "${2}"
        "${here}/apps.bash" "${2}" "${SKIP}" "${SYNC}"
        ;;
    test)
        [[ "${2}" =~ ^(wc|sc)$ ]] || usage
        "${here}/test.bash" "${2}"
        ;;
    dry-run)
        [[ "${2}" =~ ^(wc|sc)$ ]] || usage
        "${here}/dry-run.bash" "${2}" "${KUBECTL}"
        ;;
    team)
        case "${2}" in
            add-pgp|remove-pgp)
                [ -n "${3}" ] || usage
                "${here}/team.bash" "${2}" "${3}"
                ;;
            *) usage ;;
        esac
        ;;
    ops)
        case "${2}" in
            kubectl)
                [[ "${3}" =~ ^(wc|sc)$ ]] || usage
                shift 2
                "${here}/ops.bash" kubectl "${@}"
            ;;
            helm)
                [[ "${3}" =~ ^(wc|sc)$ ]] || usage
                shift 2
                "${here}/ops.bash" helm "${@}"
            ;;
            helmfile)
                [[ "${3}" =~ ^(wc|sc)$ ]] || usage
                shift 2
                "${here}/ops.bash" helmfile "${@}"
            ;;
            *) usage ;;
        esac
    ;;
    s3cmd)
        shift
        sops_exec_file "${secrets[s3cfg_file]}" 's3cmd --config="{}" '"${*}"
    ;;
    kubeconfig)
        [[ "${2}" =~ ^(user|admin)$ ]] || usage
        shift
        "${here}/kubeconfig.bash" "${@}"
        ;;
    completion)
        [ -f "${here}/../completion/${2}" ] || usage
        cat "${here}/../completion/${2}"
        ;;
    validate)
        [[ "${2}" =~ ^(wc|sc)$ ]] || usage
        config_load "$2"
        echo "Config validation successful"
        ;;
    providers) echo "${ck8s_cloud_providers[@]}" ;;
    flavors) echo "${ck8s_flavors[@]}" ;;
    *) usage ;;
esac