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POC for Authentik OAuth Authentication/Authorization Go client library, programmatically creates Users, Groups, OAuth tokens etc.

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AndriyKalashnykov/authentik-k8s

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Hits License: MIT

  • K8s deployment
  • gotest, POC project utilizing goauthentik/client-go, programmatically creates Users, Groups, OAuth tokens etc.
    • create Group
    • create User
    • create User's password
    • create User's OAuth token
    • get User's Groups (using User's OAuth token)

Requirements

  • gvm Go 1.22.4
    gvm install go1.22.4 --prefer-binary --with-build-tools --with-protobuf
    gvm use go1.22.4 --default
  • kind
  • kubectl
  • docker
  • docker-compose
    sudo apt-get install -y docker-compose

K8s

Deploy on K8s (PostgreSQL)

Authentik manifests already generated with Authentik Helm chart and configures with AUTHENTIK_BOOTSTRAP_PASSWORD and AUTHENTIK_BOOTSTRAP_TOKEN if you need to change them see next chapter first.

Execute script to deploy manifests and open browser window, login: akadmin, pwd: Authentik01234567890!

./scripts/deploy-authentik-k8s.sh

Create Authentik k8s manifests using Helm

helm repo add authentik https://charts.goauthentik.io
helm repo update

helm template authentik authentik/authentik -f ./k8s/postgresql/values.yml > ./k8s/postgresql/authentik-postgresql.yml

If you want to set predefined password and token for the default admin user akadmin:

edit ./k8s/postgresql/authentik-postgresql.yml -> Deployment authentik-server

apiVersion: apps/v1
kind: Deployment
metadata:
  name: authentik-server
  ...
spec:
  ...
  template:
    ...
    spec:
      containers:
        - name: authentik
          ...
          env:            
            ...
            - name: AUTHENTIK_BOOTSTRAP_PASSWORD
              value: "Authentik01234567890!"
            - name: AUTHENTIK_BOOTSTRAP_TOKEN
              value: "NoMlxBQuYgfu3j19ygGqhjXenAjrJgOfN5naqmSDBUhdLjYqHKze7yyzY07H"

edit ./k8s/postgresql/authentik-postgresql.yml -> Deployment authentik-worker

apiVersion: apps/v1
kind: Deployment
metadata:
  name: authentik-worker
  ...
spec:
  ...
  template:
    ...
    spec:
      ...
      containers:
        - name: authentik
          ...
          env:            
            ...
            - name: AUTHENTIK_BOOTSTRAP_PASSWORD
              value: "Authentik01234567890!"
            - name: AUTHENTIK_BOOTSTRAP_TOKEN
              value: "NoMlxBQuYgfu3j19ygGqhjXenAjrJgOfN5naqmSDBUhdLjYqHKze7yyzY07H"

### Deploy on K8s (CockroachDB, experimental, not working yet)

# create manifests if needed
helm template crdb cockroachdb/cockroachdb --namespace default \
--set fullnameOverride=crdb \
--set single-node=true \
--set statefulset.replicas=1 > ./k8s/cockroachdb/cockroachdb.yml

# create namespace
kubectl create ns threeport-api

# deploy cockroachdb
kubectl apply -f ./k8s/cockroachdb/cockroachdb.yml
echo "waiting for cockroachdb to get ready"
kubectl wait pod -n threeport-api crdb-0 --for condition=Ready --timeout=180s

# deploy authentik
kubectl apply -f ./k8s/cockroachdb/authentik-cockroachdb.yml
kubectl apply -f ./k8s/cockroachdb/crdb-test-pod.yml

# undeploy authentik
kubectl delete -f ./k8s/cockroachdb/authentik-cockroachdb.yml

# undeploy cockroachdb
kubectl delete -f ./k8s/cockroachdb/cockroachdb.yml
kubectl delete -f ./k8s/cockroachdb/crdb-test-pod.yml

Python/CockroachDB error

✔ 14:31 ~/projects/authentik-k8s [ main|✚ 1] $ k logs -n threeport-api authentik-server-5cc447f9fb-8wwv2 
Defaulted container "authentik" out of: authentik, db-init (init)
{"event": "Loaded config", "level": "debug", "logger": "authentik.lib.config", "timestamp": 1674588685.27217, "file": "/authentik/lib/default.yml"}
{"event": "Loaded environment variables", "level": "debug", "logger": "authentik.lib.config", "timestamp": 1674588685.2725286, "count": 46}
{"event": "Starting authentik bootstrap", "level": "info", "logger": "authentik.lib.config", "timestamp": 1674588685.2726445}
{"event": "PostgreSQL connection successful", "level": "info", "logger": "authentik.lib.config", "timestamp": 1674588685.2753716}
{"event": "Redis Connection successful", "level": "info", "logger": "authentik.lib.config", "timestamp": 1674588685.27696}
{"event": "Finished authentik bootstrap", "level": "info", "logger": "authentik.lib.config", "timestamp": 1674588685.276978}
{"event": "Bootstrap completed", "level": "info", "logger": "bootstrap"}
{"event": "Loaded config", "level": "debug", "logger": "authentik.lib.config", "timestamp": 1674588685.4033535, "file": "/authentik/lib/default.yml"}
{"event": "Loaded environment variables", "level": "debug", "logger": "authentik.lib.config", "timestamp": 1674588685.4036634, "count": 46}
2023-01-24 19:31:25 [info     ] applying django migrations
2023-01-24 19:31:25 [info     ] waiting to acquire database lock
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/lifecycle/migrate.py", line 83, in <module>
    wait_for_lock()
  File "/lifecycle/migrate.py", line 40, in wait_for_lock
    curr.execute("SELECT pg_advisory_lock(%s)", (ADV_LOCK_UID,))
psycopg2.errors.UndefinedFunction: unknown function: pg_advisory_lock(): function undefined

Root cause: psycopg2.errors.UndefinedFunction: unknown function: pg_advisory_lock(): function undefined

Docker Compose

Run using docker-compose

./scripts/start-docker-compose-authentik.sh

Run POC

Run POC to perform following using goauthentik/client-go

  • create qleetctl user
  • create qleetctl user's passowrd and token
  • create QleetOS group
  • assing qleetctl user to QleetOS group
  • use qleetctl user's token to find which groups it belong to
cd gotest
make run

Login to Authentik Web Admin inteface

Docker Compose

echo "login: akadmin, pwd: Authentik01234567890!"
xdg-open https://localhost:9443/if/admin/#/administration/overview

Kubernetes

LB_IP=$(kubectl get svc/authentik -o=jsonpath='{.status.loadBalancer.ingress[0].ip}')
echo "login: akadmin, pwd: Authentik01234567890!"
xdg-open https://$LB_IP:443/if/admin/#/administration/overview

Login

Password

Users

User-Groups

Groups

Groups-User

Tokens

Referenced

Authentik and Traefik

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POC for Authentik OAuth Authentication/Authorization Go client library, programmatically creates Users, Groups, OAuth tokens etc.

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