refactor(infra): gate Gitea and act-runner behind var.enable_gitea

All Gitea and runner resources use count = var.enable_gitea ? 1 : 0
(or for_each with an empty set when false). The gitea namespace is
conditionally included. Default is false.

To enable: terraform apply -var enable_gitea=true

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Gonçalo Rodrigues 2026-06-20 16:14:57 +01:00
parent c3b7003725
commit a7ba0a9dd6
4 changed files with 358 additions and 8 deletions

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@ -1,2 +1,193 @@
# Act runner disabled postponed until dedicated server/VPS. resource "kubernetes_service_account" "act_runner" {
# See git history for the full configuration. count = var.enable_gitea ? 1 : 0
metadata {
name = "act-runner"
namespace = kubernetes_namespace.domains["gitea"].metadata[0].name
}
}
resource "kubernetes_cluster_role" "act_runner" {
count = var.enable_gitea ? 1 : 0
metadata {
name = "act-runner"
}
rule {
api_groups = ["apps"]
resources = ["deployments"]
verbs = ["get", "list", "patch", "update"]
}
rule {
api_groups = [""]
resources = ["pods", "pods/log"]
verbs = ["get", "list"]
}
rule {
api_groups = ["batch"]
resources = ["jobs"]
verbs = ["create", "get", "list", "watch", "delete"]
}
}
resource "kubernetes_cluster_role_binding" "act_runner" {
count = var.enable_gitea ? 1 : 0
metadata {
name = "act-runner"
}
role_ref {
api_group = "rbac.authorization.k8s.io"
kind = "ClusterRole"
name = kubernetes_cluster_role.act_runner[0].metadata[0].name
}
subject {
kind = "ServiceAccount"
name = kubernetes_service_account.act_runner[0].metadata[0].name
namespace = kubernetes_namespace.domains["gitea"].metadata[0].name
}
}
resource "kubernetes_config_map" "act_runner" {
count = var.enable_gitea ? 1 : 0
metadata {
name = "act-runner-config"
namespace = kubernetes_namespace.domains["gitea"].metadata[0].name
}
data = {
"config.yaml" = yamlencode({
log = { level = "info" }
runner = {
capacity = 2
fetch_timeout = "5s"
fetch_interval = "2s"
report_interval = "1s"
envs = {}
}
cache = { enabled = false }
container = {
network = "host"
valid_volumes = ["/var/run/secrets/kubernetes.io/serviceaccount"]
docker_host = "tcp://localhost:2375"
}
})
}
}
resource "kubernetes_deployment" "act_runner" {
count = var.enable_gitea ? 1 : 0
depends_on = [helm_release.gitea, kubernetes_secret.gitea_runner_token]
metadata {
name = "act-runner"
namespace = kubernetes_namespace.domains["gitea"].metadata[0].name
labels = { app = "act-runner" }
}
spec {
replicas = 1
selector {
match_labels = { app = "act-runner" }
}
template {
metadata {
labels = { app = "act-runner" }
}
spec {
service_account_name = kubernetes_service_account.act_runner[0].metadata[0].name
container {
name = "runner"
image = "gitea/act_runner:latest"
command = ["/bin/sh", "-c"]
args = [<<-EOT
set -e
if [ ! -f /data/.runner ]; then
act_runner register \
--no-interactive \
--instance http://gitea-http.gitea.svc.cluster.local:3000 \
--token "$(cat /etc/runner-token/token)" \
--name "k3d-runner-$(hostname)" \
--labels ubuntu-latest
fi
exec act_runner daemon --config /etc/act-runner/config.yaml
EOT
]
env {
name = "DOCKER_HOST"
value = "tcp://localhost:2375"
}
env {
name = "KUBERNETES_SERVICE_HOST"
value_from {
field_ref { field_path = "status.hostIP" }
}
}
volume_mount {
name = "runner-data"
mount_path = "/data"
}
volume_mount {
name = "runner-config"
mount_path = "/etc/act-runner"
}
volume_mount {
name = "runner-token"
mount_path = "/etc/runner-token"
read_only = true
}
resources {
requests = { cpu = "100m", memory = "128Mi" }
limits = { cpu = "500m", memory = "512Mi" }
}
}
container {
name = "dind"
image = "docker:27-dind"
security_context {
privileged = true
}
args = ["--insecure-registry=gitea-http.gitea.svc.cluster.local:3000"]
env {
name = "DOCKER_TLS_CERTDIR"
value = ""
}
volume_mount {
name = "docker-storage"
mount_path = "/var/lib/docker"
}
resources {
requests = { cpu = "200m", memory = "256Mi" }
limits = { cpu = "1", memory = "1Gi" }
}
}
volume {
name = "runner-data"
empty_dir {}
}
volume {
name = "docker-storage"
empty_dir {}
}
volume {
name = "runner-config"
config_map {
name = kubernetes_config_map.act_runner[0].metadata[0].name
}
}
volume {
name = "runner-token"
secret {
secret_name = kubernetes_secret.gitea_runner_token[0].metadata[0].name
}
}
}
}
}
}

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@ -1,2 +1,156 @@
# Gitea and registry pull secrets disabled postponed until dedicated server/VPS. resource "random_password" "gitea_admin" {
# See git history for the full configuration. count = var.enable_gitea ? 1 : 0
length = 24
special = false
}
resource "kubernetes_secret" "gitea_admin" {
count = var.enable_gitea ? 1 : 0
metadata {
name = "gitea-admin"
namespace = kubernetes_namespace.domains["gitea"].metadata[0].name
}
data = {
username = "admin"
password = random_password.gitea_admin[0].result
email = "admin@homelab.local"
}
}
resource "helm_release" "gitea" {
count = var.enable_gitea ? 1 : 0
name = "gitea"
namespace = kubernetes_namespace.domains["gitea"].metadata[0].name
repository = "https://dl.gitea.com/charts/"
chart = "gitea"
version = "~> 12.0"
atomic = true
timeout = 300
values = [yamlencode({
gitea = {
admin = {
existingSecret = kubernetes_secret.gitea_admin[0].metadata[0].name
}
config = {
APP_NAME = "Homelab Git"
server = {
DOMAIN = "git.homelab.local"
ROOT_URL = "http://git.homelab.local"
SSH_DOMAIN = "localhost"
SSH_PORT = 30001
}
database = { DB_TYPE = "sqlite3" }
queue = { TYPE = "level" }
cache = { ADAPTER = "memory" }
session = { PROVIDER = "memory" }
packages = { ENABLED = "true" }
service = { DISABLE_REGISTRATION = "true" }
log = { LEVEL = "Warn" }
}
}
"postgresql-ha" = { enabled = false }
"valkey-cluster" = { enabled = false }
ingress = {
enabled = true
className = "traefik"
hosts = [{
host = "git.homelab.local"
paths = [{ path = "/", pathType = "Prefix" }]
}]
}
# NodePort 30002: used by k3d containerd registry mirror (see k3d/config.yaml)
service = {
http = {
type = "NodePort"
port = 3000
nodePort = 30002
}
ssh = {
type = "NodePort"
port = 22
nodePort = 30001
}
}
persistence = {
enabled = true
size = "10Gi"
storageClass = "local-path"
}
resources = {
requests = { cpu = "100m", memory = "256Mi" }
limits = { cpu = "500m", memory = "512Mi" }
}
})]
}
resource "kubernetes_secret" "gitea_runner_token" {
count = var.enable_gitea ? 1 : 0
metadata {
name = "gitea-runner-token"
namespace = kubernetes_namespace.domains["gitea"].metadata[0].name
}
data = { token = "" }
lifecycle {
ignore_changes = [data]
}
}
resource "terraform_data" "gitea_runner_registration" {
count = var.enable_gitea ? 1 : 0
depends_on = [helm_release.gitea, kubernetes_secret.gitea_runner_token]
triggers_replace = [random_password.gitea_admin[0].id]
provisioner "local-exec" {
interpreter = ["/bin/sh", "-c"]
command = <<-EOT
set -e
echo "Waiting for Gitea to be ready..."
until curl -sf "http://git.homelab.local/api/v1/version" > /dev/null 2>&1; do
sleep 5
done
PASSWORD=$(kubectl get secret gitea-admin -n gitea \
-o jsonpath='{.data.password}' | base64 -d)
TOKEN=$(curl -sf \
-u "admin:$PASSWORD" \
"http://git.homelab.local/api/v1/admin/runners/registration-token" \
| grep -o '"token":"[^"]*"' | cut -d'"' -f4)
kubectl patch secret gitea-runner-token -n gitea \
-p "{\"data\":{\"token\":\"$(printf '%s' "$TOKEN" | base64)\"}}"
echo "Runner registration token written to gitea-runner-token secret."
EOT
}
}
locals {
app_namespaces = ["auth", "finance", "home", "test"]
}
resource "kubernetes_secret" "gitea_registry" {
for_each = var.enable_gitea ? toset(local.app_namespaces) : toset([])
metadata {
name = "gitea-registry"
namespace = kubernetes_namespace.domains[each.value].metadata[0].name
}
type = "kubernetes.io/dockerconfigjson"
data = {
".dockerconfigjson" = jsonencode({
auths = {
"git.homelab.local" = {
auth = base64encode("admin:${random_password.gitea_admin[0].result}")
}
}
})
}
}

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@ -1,5 +1,8 @@
locals { locals {
namespaces = ["auth", "home", "finance", "test", "monitoring", "infrastructure"] namespaces = concat(
["auth", "home", "finance", "test", "monitoring", "infrastructure"],
var.enable_gitea ? ["gitea"] : []
)
} }
resource "kubernetes_namespace" "domains" { resource "kubernetes_namespace" "domains" {

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@ -1,3 +1,5 @@
# No manual secrets required passwords are generated by random_password resources variable "enable_gitea" {
# and stored in Terraform state. Runner token is fetched from the Gitea API description = "Deploy Gitea and the act runner. Set to false to skip (e.g. on a dev laptop without a dedicated server)."
# automatically after the first deploy. type = bool
default = false
}