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*.crt
*.key

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# AWX on Single Node K3s
An example implementation of AWX on single node K3s using AWX Operator, with easy-to-use simplified configuration with ownership of data and passwords.
- Accesible over HTTPS from remote host
- All data will be stored under `/data`
- Fixed (configurable) passwords for AWX and PostgreSQL
- Fixed (configurable) versions of AWX and PostgreSQL
## Environment
- Tested on:
- CentOS 8 (Minimal)
- Products that will be deployed:
- AWX-Operator 0.9.0
- AWX Version 19.1.0
- PostgreSQL 12
## References
- [K3s - Lightweight Kubernetes](https://rancher.com/docs/k3s/latest/en/)
- [INSTALL.md on ansible/awx](https://github.com/ansible/awx/blob/19.1.0/INSTALL.md) @19.1.0
- [README.md on ansible/awx-operator](https://github.com/ansible/awx-operator/blob/0.9.0/README.md) @0.9.0
## Procedure
### Prepare CentOS 8 host
Disable Firewalld. This is [recommended by K3s](https://rancher.com/docs/k3s/latest/en/advanced/#additional-preparation-for-red-hat-centos-enterprise-linux).
```bash
sudo systemctl disable firewalld --now
```
### Install K3s
Install K3s with `--write-kubeconfig-mode 644` to make config file (`/etc/rancher/k3s/k3s.yaml`) readable by non-root user.
```bash
curl -sfL https://get.k3s.io | sh -s - --write-kubeconfig-mode 644
```
### Install AWX Operator
Install specified version of AWX Operator.
```bash
kubectl apply -f https://raw.githubusercontent.com/ansible/awx-operator/0.9.0/deploy/awx-operator.yaml
```
### Prepare required files
Clone this repository and change directory.
```bash
git clone https://github.com/kurokobo/awx-on-k3s.git
cd awx-on-k3s
```
Generate a Self-Signed Certificate. Note that IP address can't be specified.
```bash
AWX_HOST="awx.example.com"
openssl req -x509 -nodes -days 3650 -newkey rsa:2048 -out ./base/tls.crt -keyout ./base/tls.key -subj "/CN=${AWX_HOST}/O=${AWX_HOST}" -addext "subjectAltName = DNS:${AWX_HOST}"
```
Modify `tower_hostname` in `base\awx.yaml`.
```yaml
---
...
spec:
tower_ingress_type: Ingress
tower_ingress_tls_secret: awx-secret-tls
tower_hostname: awx.example.com 👈👈👈
...
```
Modify two `password`s in `base\kustomization.yaml`.
```yaml
...
- name: awx-postgres-configuration
type: Opaque
literals:
- host=awx-postgres
- port=5432
- database=awx
- username=awx
- password=Ansible123!! 👈👈👈
- type=managed
- name: awx-admin-password
type: Opaque
literals:
- password=Ansible123!! 👈👈👈
...
```
Prepare directories for Persistent Volumes defined in `base/pv.yaml`.
```bash
sudo mkdir -p /data/postgres
sudo mkdir -p /data/projects
sudo chown 1000:0 /data/projects
```
### Deploy AWX
Deploy AWX, this takes few minutes to complete.
```bash
kubectl apply -k base
```
Once this completed, the logs of `deployment/awx-operator` end with:
```txt
--------------------------- Ansible Task Status Event StdOut -----------------
PLAY RECAP *********************************************************************
localhost : ok=42 changed=0 unreachable=0 failed=0 skipped=31 rescued=0 ignored=0
-------------------------------------------------------------------------------
```
Required objects has been deployed in `awx` namespace.
```bash
$ kubectl get all -n awx
NAME READY STATUS RESTARTS AGE
pod/awx-postgres-0 1/1 Running 0 131m
pod/awx-545c885884-62qxd 4/4 Running 0 131m
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/awx-postgres ClusterIP None <none> 5432/TCP 131m
service/awx-service NodePort 10.43.34.90 <none> 80:30882/TCP 131m
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/awx 1/1 1 1 131m
NAME DESIRED CURRENT READY AGE
replicaset.apps/awx-545c885884 1 1 1 131m
NAME READY AGE
statefulset.apps/awx-postgres 1/1 131m
```
Now AWX is available at `https://<awx-host>/`.

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---
apiVersion: awx.ansible.com/v1beta1
kind: AWX
metadata:
name: awx
spec:
tower_image_version: "19.1.0"
tower_postgres_image_version: "12"
tower_ingress_type: Ingress
tower_ingress_tls_secret: awx-secret-tls
tower_hostname: awx.example.com
tower_postgres_configuration_secret: awx-secret-postgres
tower_postgres_storage_class: awx-postgres-volume
tower_postgres_storage_requirements:
requests:
storage: 2Gi
tower_projects_persistence: true
tower_projects_existing_claim: awx-projects-claim

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---
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
namespace: awx
generatorOptions:
disableNameSuffixHash: true
secretGenerator:
- name: awx-secret-tls
type: kubernetes.io/tls
files:
- tls.crt
- tls.key
- name: awx-postgres-configuration
type: Opaque
literals:
- host=awx-postgres
- port=5432
- database=awx
- username=awx
- password=Ansible123!
- type=managed
- name: awx-admin-password
type: Opaque
literals:
- password=Ansible123!
resources:
- namespace.yaml
- pv.yaml
- pvc.yaml
- awx.yaml

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---
apiVersion: v1
kind: Namespace
metadata:
name: awx

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---
apiVersion: v1
kind: PersistentVolume
metadata:
name: awx-postgres-volume
spec:
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Retain
capacity:
storage: 2Gi
storageClassName: awx-postgres-volume
hostPath:
path: /data/postgres
---
apiVersion: v1
kind: PersistentVolume
metadata:
name: awx-projects-volume
spec:
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Retain
capacity:
storage: 2Gi
storageClassName: awx-projects-volume
hostPath:
path: /data/projects

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---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: awx-projects-claim
spec:
accessModes:
- ReadWriteOnce
volumeMode: Filesystem
resources:
requests:
storage: 2Gi
storageClassName: awx-projects-volume