📚 AWX on Single Node K3s

An example implementation of AWX on single node K3s using AWX Operator.

• Accessible over HTTPS from remote host

📝 Table of Contents

• 📝 Requirements
• ✅ Install K3s
• ✅ Install AWX Operator
• ✅ Prepare required files to deploy AWX
  • ✅ Deploy AWX
• ❌ Troubleshooting Issues

📝 Requirements

• Computing resources
  • Both AMD64 (x86_64) with x86-64-v2 or cpu type Host support bc the DB would not start , and ARM64 (aarch64) are supported.
  • 4 GiB RAM minimum.
  • It's recommended to add more CPUs and RAM (like 4 CPUs and 8 GiB RAM or more) to avoid performance issue and job scheduling issue.
• Storage resources
  • At least 10 GiB for /var/lib/rancher are safe for fresh install.
  • The actual consumption highly depends on your environment and your use case, so you should to pay attention to the consumption and add more capacity if required.

📝 Deployment Instruction

Disable firewalld if enabled if not use kubernetes-firewall first before installing K3S. This is recommended by K3s.

cd firewall
. kubernetes-firewall.sh

✅ Install K3s

Install K3s with --write-kubeconfig-mode 644 to make the config file (/etc/rancher/k3s/k3s.yaml) readable by non-root users.

curl -sfL https://get.k3s.io |  sh -s - --write-kubeconfig-mode 644

Also add your subnet in noproxy in

vim /etc/systemd/system/k3s.service.env
#should look like this 
no_proxy='localhost,127.0.0.1, .dkfz.heidelberg.de, .inet.dkfz-heidelberg.de, .dkfz.de, 10.131.196.0/22'

✅ Install AWX Operator

Clone this repository and change directory.

cd ~
git clone https://odcf-gitlab.dkfz.de/it/trainee/awx-test.git
cd awx-operator

then copy or create (if needed) an certificat to the kubernetes folder.

PS: is not needed you can also specify the location of the Cert and key.

cd kubernetes
openssl req -x509 -nodes -days 365 -newkey rsa:4096 -keyout yourdomain.key -out yourdomain.crt -subj "/CN=example.com" -addext "subjectAltName=DNS:example.com"

After that you copied the Key and Cert file to the system. You can run the awx.sh script Also look for the AWX-Operator version

chmod +x awx.sh
. awx.sh

By default, the admin user is admin and the password is available in the -admin-password secret. To retrieve the admin password, run:

kubectl get secret odcf-awx-admin-password -n awx -o jsonpath="{.data.password}" | base64 --decode ; echo

❌ Troubleshooting Issues

1. Check Resources:

   kubectl -n awx get awx,all,ingress,secrets
   

2. Create Admin Password Secret (if not created):

   kubectl -n awx create secret generic odcf-awx-admin-password --from-literal=password=<your-admin-password>
   

3. Verify Ingress:

   kubectl get endpoints -n awx
   

   Check if the endpoint for odcf-awx-service is available on port 80. If not, update the awx-ingress-tls.yaml script.

Some Usefull CMD

kubectl get namespaces
kubectl -n awx get awx,all,ingress,secrets
kubectl get svc -n <namespace>
kubectl describe pod <pod_name> -n <namespace>
kubectl describe service <service_name> -n <namespace>
kubectl get events -n <namespace>
kubectl -n awx get all
kubectl -n awx logs -f deployments/awx-operator-controller-manager

Credits: written by Johannes Nguyen

[email protected]