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diff --git a/content/docs/adyxax.org/bitwarden/install.md b/content/docs/adyxax.org/bitwarden/install.md new file mode 100644 index 0000000..ecd647f --- /dev/null +++ b/content/docs/adyxax.org/bitwarden/install.md @@ -0,0 +1,274 @@ +--- +title: "Installation" +description: Installation notes of vaultwarden on k3s +tags: +- k3s +- kubernetes +- postgresql +- vaultwarden +--- + +## Introduction + +Please refer to [the official website](https://pass.app/) documentation for an up to date installation guide. This page only lists what I had to do at the time to setup pass and adapt it to my particular setup. I updated these instructions after migrating from a traditional hosting to kubernetes. + +## Preparing the postgresql database + +I have a postgresql running in its own namespace from bitnami images. To provision the pass database I : +```sh +export POSTGRES_PASSWORD=$(k get secret -n postgresql postgresql-secrets -o jsonpath="{.data.postgresql-password}"| + base64 --decode) +k run client --rm -ti -n postgresql --image docker.io/bitnami/postgresql:13.4.0-debian-10-r52 \ + --env="PGPASSWORD=$POSTGRES_PASSWORD" --command -- psql --host postgresql -U postgres +CREATE ROLE pass WITH LOGIN PASSWORD 'secret'; +CREATE DATABASE pass WITH OWNER pass TEMPLATE template0 ENCODING UTF8 LC_COLLATE + 'en_US.UTF-8' LC_CTYPE 'en_US.UTF-8'; +\c pass +create extension hstore; +``` + +Optionally import a dump of the database by running in another shell : +```sh +k -n postgresql cp pass.sql-20211005 client:/tmp/ +``` + +Then in the psql shell : +```sh +\c pass +\i /tmp/pass.sql-20211005 +``` + +## Kubernetes manifests in terraform + +This app is part of an experiment of mine to migrate stuff from traditional hosting to kubernetes. I first wrote manifests by hand then imported them with terraform. I do not like it and find it too complex/overkill but that is managed this way for now. + +### DNS CNAME + +Since all configuration regarding this application is in terraform, so is the dns : +```hcl +resource "cloudflare_record" "pass-cname" { + zone_id = lookup(data.cloudflare_zones.adyxax-org.zones[0], "id") + name = "pass" + value = "myth.adyxax.org" + type = "CNAME" + proxied = false +} +``` + +### Namespace + +The basic terraform object works for simple things so here it is : +```hcl +resource "kubernetes_namespace" "myth-pass" { + provider = kubernetes.myth + metadata { + name = "pass" + } +} +``` + +### Secret + +Here is the kubernetes secret that tells pass how to connect the database. The password comes from `terraform.tfvars`, you might need to update the service url with the format `<svc>.<namespace>.svc.cluster.local` : +```hcl +resource "kubernetes_secret" "myth-pass-secrets" { + provider = kubernetes.myth + metadata { + name = "pass-secrets" + namespace = kubernetes_namespace.myth-pass.id + } + data = { + ADMIN_PASSWORD = var.pass-admin-password + DATABASE_URL = join("", [ "postgres://pass:${var.pass-postgres-password}", + "@postgresql.postgresql.svc.cluster.local/pass?sslmode=disable"]) + } + type = "Opaque" +} +``` + +### Deployment + +I could not write the deployment with the `kubernetes_deployment` terraform ressource, so it is a row manifest which imports a yaml syntax in hcl. It is horrible to look at but works. Change the image tag to the latest stable version of pass before deploying : +```hcl +resource "kubernetes_manifest" "myth-deployment-pass" { + provider = kubernetes.myth + manifest = { + "apiVersion" = "apps/v1" + "kind" = "Deployment" + "metadata" = { + "name" = "pass" + "namespace" = kubernetes_namespace.myth-pass.id + } + "spec" = { + "replicas" = 1 + "selector" = { + "matchLabels" = { + "app" = "pass" + } + } + "strategy" = { + "type" = "RollingUpdate" + "rollingUpdate" = { + "maxSurge" = 1 + "maxUnavailable" = 0 + } + } + "template" = { + "metadata" = { + "labels" = { + "app" = "pass" + } + } + "spec" = { + "containers" = [ + { + "env" = [ + { + "name" = "DATABASE_URL" + "valueFrom" = { + "secretKeyRef" = { + "key" = "DATABASE_URL" + "name" = "pass-secrets" + } + } + }, + { + "name" = "RUN_MIGRATIONS" + "value" = "1" + }, + { + "name" = "ADMIN_USERNAME" + "value" = "admin" + }, + { + "name" = "ADMIN_PASSWORD" + "valueFrom" = { + "secretKeyRef" = { + "key" = "ADMIN_PASSWORD" + "name" = "pass-secrets" + } + } + }, + ] + "image" = "vaultwarden/server:1.23.0" + "livenessProbe" = { + "httpGet" = { + "path" = "/" + "port" = 8080 + } + "initialDelaySeconds" = 5 + "timeoutSeconds" = 5 + } + "name" = "pass" + "ports" = [ + { + "containerPort" = 8080 + }, + ] + "readinessProbe" = { + "httpGet" = { + "path" = "/" + "port" = 8080 + } + "initialDelaySeconds" = 5 + "timeoutSeconds" = 5 + } + "lifecycle" = { + "preStop" = { + "exec" = { + "command" = ["/bin/sh", "-c", "sleep 10"] + } + } + } + }, + ] + "terminationGracePeriodSeconds" = 1 + } + } + } + } +} +``` + +### Service + +```hcl +resource "kubernetes_manifest" "myth-service-pass" { + provider = kubernetes.myth + manifest = { + "apiVersion" = "v1" + "kind" = "Service" + "metadata" = { + "name" = "pass" + "namespace" = kubernetes_namespace.myth-pass.id + } + "spec" = { + "ports" = [ + { + "port" = 80 + "protocol" = "TCP" + "targetPort" = 8080 + }, + ] + "selector" = { + "app" = "pass" + } + "type" = "ClusterIP" + } + } +} +``` + +### Ingress + +```hcl +resource "kubernetes_manifest" "myth-ingress-pass" { + provider = kubernetes.myth + manifest = { + "apiVersion" = "networking.k8s.io/v1" + "kind" = "Ingress" + "metadata" = { + "name" = "pass" + "namespace" = kubernetes_namespace.myth-pass.id + } + "spec" = { + "ingressClassName" = "nginx" + "rules" = [ + { + "host" = "pass.adyxax.org" + "http" = { + "paths" = [ + { + "path" = "/" + "pathType" = "Prefix" + "backend" = { + "service" = { + "name" = "pass" + "port" = { + "number" = 80 + } + } + } + }, + ] + } + }, + ] + "tls" = [ + { + "secretName" = "wildcard-adyxax-org" + }, + ] + } + } +} +``` + +### Certificate + +For now I do not manage my certificates with terraform but manually. Once every two months I run : +```sh +acme.sh --config-home "$HOME/.acme.sh" --server letsencrypt --dns dns_cf --issue -d adyxax.org -d *.adyxax.org --force +kubectl -n pass create secret tls wildcard-adyxax-org --cert=$HOME/.acme.sh/adyxax.org/fullchain.cer \ + --key=$HOME/.acme.sh/adyxax.org/adyxax.org.key -o yaml --save-config --dry-run=client | kubectl apply -f - +``` |