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Michele Cereda 885ebd11d1 chore(awx): add gotcha about undefined values for some resources

2025-02-16 19:10:31 +01:00

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Ansible AWX

Gotchas
Instance setup
API
Further readings
1. Sources

Gotchas

Not defining values in some resources means they are using the setting of the underlying dependency.
E.g.: A schedule's job_type: null attribute means that the job it starts will use the job template's job_type setting.
Consider using only AMD64 nodes to host the containers for AWX instances.

As of 2024-04-11, AWX does not appear to provide ARM64 images for all its containers.
One'll need to build their own missing ARM64 images and specify those during deployment. Good luck with that!

K8S tolerations set in AWX custom resources only affect K8S-based AWX instances' deployments.
They are not applied to other resources like automation Jobs.

Jobs' specific K8S settings need to be configured in the pod_spec_override attribute of Instance Groups of type Container Group.

---
# awx instance_groups get 'default' -f 'yaml'
…
pod_spec_override: |
  apiVersion: v1
  kind: Pod
  metadata:
    namespace: awx
    spec:
      …
      containers:
        - …
          image: 012345678901.dkr.ecr.eu-west-1.amazonaws.com/custom/awx-ee:latest
          resources:
            requests:
              cpu: 250m
              memory: 100Mi
            limits:
              cpu: 1930m
              memory: 3297Mi
      tolerations:
        - key: org.example.k8s/reservation/app
          operator: Equal
          value: awx
          effect: NoSchedule
        - key: org.example.k8s/awx/component
          operator: Equal
          value: job
          effect: NoSchedule
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
              - matchExpressions:
                - key: org.example.k8s/reservation/app
                  operator: In
                  values:
                    - awx
          preferredDuringSchedulingIgnoredDuringExecution:
            - weight: 10
              preference:
                matchExpressions:
                  - key: org.example.k8s/awx/component
                    operator: In
                    values:
                      - job

Instance setup

Deployment

Starting from version 18.0, the AWX Operator is the preferred way to install AWX.
It is meant to provide a Kubernetes-native installation method for AWX via an AWX Custom Resource Definition (CRD).

The operator will use an Ansible role to create all the AWX resources under its hood.
See Iterating on the installer without deploying the operator.

Requirements:

An existing K8S cluster.
The ability to create PersistentVolumeClaims and PersistentVolumes in said K8S cluster.
The ability for the cluster to create load balancers if setting the service type to load balancer.

Deploy the operator with kustomize

$ mkdir -p '/tmp/awx'
$ cd '/tmp/awx'

# Specify the tag to use.
/tmp/awx$ cat <<EOF > 'kustomization.yaml'
---
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
namespace: awx
resources:
  - github.com/ansible/awx-operator/config/default?ref=2.14.0
    # https://github.com/ansible/awx-operator/releases
EOF

# Start the operator.
/tmp/awx$ kubectl apply -k '.'
namespace/awx created
…
deployment.apps/awx-operator-controller-manager created
/tmp/awx$ kubectl -n 'awx' get pods
NAME                                              READY   STATUS    RESTARTS   AGE
awx-operator-controller-manager-8b7dfcb58-k7jt8   2/2     Running   0          10m

Deploy the operator with helm

# Add the operator's repository.
$ helm repo add 'awx-operator' 'https://ansible.github.io/awx-operator/'
"awx-operator" has been added to your repositories
$ helm repo update 'awx-operator'
Hang tight while we grab the latest from your chart repositories...
...Successfully got an update from the "awx-operator" chart repository
Update Complete. ⎈Happy Helming!⎈

$ helm search repo 'awx-operator'
NAME                            CHART VERSION   APP VERSION     DESCRIPTION
awx-operator/awx-operator       2.14.0          2.14.0          A Helm chart for the AWX Operator

# Install the operator.
$ helm -n 'awx' upgrade -i --create-namespace 'my-awx-operator' 'awx-operator/awx-operator' --version '2.14.0'
Release "my-awx-operator" does not exist. Installing it now.
NAME: my-awx-operator
LAST DEPLOYED: Mon Apr  8 15:34:00 2024
NAMESPACE: awx
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
AWX Operator installed with Helm Chart version 2.14.0
$ kubectl -n 'awx' get pods
NAME                                               READY   STATUS      RESTARTS   AGE
awx-operator-controller-manager-75b667b745-g9g9c   2/2     Running     0          17m

Once the operator is installed, AWX instances can be created by leveraging the AWX CRD.
The basic definition for a quick testing instance is as follows:

---
# file: 'awx-demo.yaml'
apiVersion: awx.ansible.com/v1beta1
kind: AWX
metadata:
  name: awx-demo
spec:
  no_log: false
  service_type: nodeport
  node_selector: |
    kubernetes.io/arch: amd64

Due to the operator being the one creating its resources, one's control is limited to what one can define in the AWX resource's spec key.
See the installer role's defaults and any page under the Advanced configuration section in the operator's documentation for details.

Useful specs:

Spec	Description	Reason
`no_log: false`	See resource creation tasks' output in the operators'logs	Debug
`node_selector: …`	Select nodes to run on	Use only specific nodes (see warning at the beginning)

Deploy AWX instances with kubectl

$ cd '/tmp/awx'
/tmp/awx$ kubectl apply -f 'awx-demo.yaml'

Deploy AWX instances with kustomize

$ cd '/tmp/awx'

/tmp/awx$ yq -iy '.resources+=["awx-demo.yaml"]' 'kustomization.yaml'
/tmp/awx$ kubectl apply -k '.'

Deploy AWX instances using the operator's helm chart's integrated definition

# Update the operator by telling it to also deploy the AWX instance.
$ helm -n 'awx' upgrade -i --create-namespace 'my-awx-operator' 'awx-operator/awx-operator' --version '2.14.0' \
  --set 'AWX.enabled=true' --set 'AWX.name=awx-demo'
Release "my-awx-operator" has been upgraded. Happy Helming!
NAME: my-awx-operator
LAST DEPLOYED: Mon Apr  8 15:37:47 2024
NAMESPACE: awx
STATUS: deployed
REVISION: 2
TEST SUITE: None
NOTES:
AWX Operator installed with Helm Chart version 2.14.0
$ kubectl -n 'awx' get pods
NAME                                               READY   STATUS      RESTARTS   AGE
awx-demo-migration-24.1.0-qhbq2                    0/1     Completed   0          12m
awx-demo-postgres-15-0                             1/1     Running     0          13m
awx-demo-task-87756dfbc-chx9t                      4/4     Running     0          12m
awx-demo-web-69d6d5d6c-wdxlv                       3/3     Running     0          12m
awx-operator-controller-manager-75b667b745-g9g9c   2/2     Running     0          17m

The default user is admin.
Get the password from the {instance}-admin-password secret:

$ kubectl -n 'awx' get secret 'awx-demo-admin-password' -o jsonpath="{.data.password}" | base64 --decode
L2ZUgNTwtswVW3gtficG1Hd443l3Kicq

Connect to the instance once it is up:

kubectl -n 'awx' port-forward 'service/awx-service' '8080:http'
open 'http://localhost:8080'

Removal

Remove the AWX resource associated to the instance to delete it:

$ kubectl delete awx 'awx-demo'
awx.awx.ansible.com "awx-demo" deleted

Remove the operator if not needed anymore:

# Using `kustomize`.
kubectl delete -k '/tmp/awx'

# Using `helm`.
helm -n 'awx' uninstall 'my-awx-operator'

Eventually, remove the namespace too to clean all things up:

kubectl delete ns 'awx'

Testing

Run: follow the basic installation guide

Guide

1. ARM, Mac OS X, minikube, kustomize: failed: ARM images for AWX not available

$ minikube start --cpus=4 --memory=6g --addons=ingress
…
🌟  Enabled addons: storage-provisioner, default-storageclass, ingress
🏄  Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default

$ mkdir -p '/tmp/awx'
$ cd '/tmp/awx'

$ # There was no ARM version of the 'kube-rbac-proxy' image upstream, so it was impossible to just use the `make deploy`
$ # command as explained in the basic install.
$ # Defaulting to use 'quay.io' as repository as the ARM version of that image is available there.
$ cat <<EOF > 'kustomization.yaml'
---
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
namespace: awx
resources:
  - github.com/ansible/awx-operator/config/default?ref=2.14.0
    # https://github.com/ansible/awx-operator/releases
images:
  - name: quay.io/ansible/awx-operator
    newTag: 2.14.0   # same as awx-operator in resources
  - name: gcr.io/kubebuilder/kube-rbac-proxy
    # no ARM version upstream, defaulting to quay.io
    newName: quay.io/brancz/kube-rbac-proxy
    newTag: v0.16.0-arm64
EOF
$ kubectl apply -k '.'
namespace/awx created
…
deployment.apps/awx-operator-controller-manager created
$ kubectl -n 'awx' get pods
NAME                                              READY   STATUS    RESTARTS   AGE
awx-operator-controller-manager-8b7dfcb58-k7jt8   2/2     Running   0          3m42s

$ cat <<EOF > 'awx-demo.yaml'
---
apiVersion: awx.ansible.com/v1beta1
kind: AWX
metadata:
  name: awx-demo
spec:
  service_type: nodeport
EOF
$ yq -iy '.resources+=["awx-demo.yaml"]' 'kustomization.yaml'
$ kubectl apply -k '.'  # this failed because awx has no ARM images yet

$ # Fine. I'll do it myself.
$ git clone 'https://github.com/ansible/awx.git'
$ cd 'awx'
$ make awx-kube-build
…
ERROR: failed to solve: process "/bin/sh -c make sdist && /var/lib/awx/venv/awx/bin/pip install dist/awx.tar.gz" did not complete successfully: exit code: 2
make: *** [awx-kube-build] Error 1
$ # (ノಠ益ಠ)ノ彡┻━┻

2. AMD64, OpenSUSE Leap 15.5, minikube, kustomize

$ minikube start --cpus=4 --memory=6g --addons=ingress
😄  minikube v1.29.0 on Opensuse-Leap 15.5
…
🌟  Enabled addons: storage-provisioner, default-storageclass, ingress
🏄  Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default

$ mkdir -p '/tmp/awx'
$ cd '/tmp/awx'

$ # Simulating the need to use a custom repository for the sake of testing, so I cannot just use the `make deploy`
$ # command as explained in the basic install.
$ # In this case, the repository will be 'quay.io'.
$ cat <<EOF > 'kustomization.yaml'
---
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
namespace: awx
resources:
  - github.com/ansible/awx-operator/config/default?ref=2.14.0
    # https://github.com/ansible/awx-operator/releases
images:
  - name: quay.io/ansible/awx-operator
    newTag: 2.14.0   # same as awx-operator in resources
EOF
$ minikube kubectl -- apply -k '.'
namespace/awx created
…
deployment.apps/awx-operator-controller-manager created
$ minikube kubectl -- -n 'awx' get pods
NAME                                               READY   STATUS    RESTARTS   AGE
awx-operator-controller-manager-75b667b745-hjfc7   2/2     Running   0          3m43s

$ cat <<EOF > 'awx-demo.yaml'
---
apiVersion: awx.ansible.com/v1beta1
kind: AWX
metadata:
  name: awx-demo
spec:
  service_type: nodeport
EOF
$ yq -iy '.resources+=["awx-demo.yaml"]' 'kustomization.yaml'
$ minikube kubectl -- apply -k '.'
serviceaccount/awx-operator-controller-manager unchanged
…
deployment.apps/awx-operator-controller-manager unchanged
awx.awx.ansible.com/awx-demo created
$ minikube kubectl -- -n 'awx' get podsminikube kubectl -- -n 'awx' get pods
NAME                                               READY   STATUS      RESTARTS   AGE
awx-demo-migration-24.1.0-kqxcj                    0/1     Completed   0          9s
awx-demo-postgres-15-0                             1/1     Running     0          61s
awx-demo-task-7fcbb46c5d-ckf9d                     4/4     Running     0          48s
awx-demo-web-58668794c8-rfd7d                      3/3     Running     0          49s
awx-operator-controller-manager-75b667b745-hjfc7   2/2     Running     0          93s

$ # Default user is 'admin'.
$ minikube kubectl -- -n 'awx' get secret 'awx-demo-admin-password' -o jsonpath="{.data.password}" | base64 --decode
L2ZUgNTwtswVW3gtficG1Hd443l3Kicq
$ xdg-open $(minikube service -n 'awx' 'awx-demo-service' --url)

$ minikube kubectl -- delete -k '.'

Run: follow the helm installation guide

Guide

1. AMD64, OpenSUSE Leap 15.5, minikube, helm

$ minikube start --cpus=4 --memory=6g --addons=ingress
😄  minikube v1.29.0 on Opensuse-Leap 15.5
…
🌟  Enabled addons: storage-provisioner, default-storageclass, ingress
🏄  Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default

$ helm repo add 'awx-operator' 'https://ansible.github.io/awx-operator/'
"awx-operator" has been added to your repositories
$ helm repo update 'awx-operator'
Hang tight while we grab the latest from your chart repositories...
...Successfully got an update from the "awx-operator" chart repository
Update Complete. ⎈Happy Helming!⎈

$ helm search repo 'awx-operator'
NAME                            CHART VERSION   APP VERSION     DESCRIPTION
awx-operator/awx-operator       2.14.0          2.14.0          A Helm chart for the AWX Operator

$ helm -n 'awx' upgrade -i --create-namespace 'my-awx-operator' 'awx-operator/awx-operator' --version '2.14.0'
Release "my-awx-operator" does not exist. Installing it now.
NAME: my-awx-operator
LAST DEPLOYED: Mon Apr  8 15:34:00 2024
NAMESPACE: awx
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
AWX Operator installed with Helm Chart version 2.14.0
$ minikube kubectl -- -n 'awx' get pods
NAME                                              READY   STATUS    RESTARTS   AGE
awx-operator-controller-manager-8b7dfcb58-k7jt8   2/2     Running   0          3m

$ helm -n 'awx' upgrade -i --create-namespace 'my-awx-operator' 'awx-operator/awx-operator' --version '2.14.0' \
  --set 'AWX.enabled=true' --set 'AWX.name=awx-demo'
Release "my-awx-operator" has been upgraded. Happy Helming!
NAME: my-awx-operator
LAST DEPLOYED: Mon Apr  8 15:37:47 2024
NAMESPACE: awx
STATUS: deployed
REVISION: 2
TEST SUITE: None
NOTES:
AWX Operator installed with Helm Chart version 2.14.0
$ minikube kubectl -- -n 'awx' get pods
NAME                                              READY   STATUS      RESTARTS   AGE
awx-demo-migration-24.1.0-qhbq2                   0/1     Completed   0          12m
awx-demo-postgres-15-0                            1/1     Running     0          13m
awx-demo-task-87756dfbc-chx9t                     4/4     Running     0          12m
awx-demo-web-69d6d5d6c-wdxlv                      3/3     Running     0          12m
awx-operator-controller-manager-8b7dfcb58-k7jt8   2/2     Running     0          17m

$ # Default user is 'admin'.
$ minikube kubectl -- -n 'awx' get secret 'awx-demo-admin-password' -o jsonpath="{.data.password}" | base64 --decode
PoU9pFR2J5oFqymgX9I3I8swFgfZVkam
$ xdg-open $(minikube service -n 'awx' 'awx-demo-service' --url)

$ helm -n 'awx' uninstall 'my-awx-operator'
$ minikube kubectl -- delete ns 'awx'

Run: kustomized helm chart

Warning

Remember to include the CRDs from the helm chart.

1. AMD64, OpenSUSE Leap 15.5, minikube

$ minikube start --cpus=4 --memory=6g --addons=ingress
😄  minikube v1.29.0 on Opensuse-Leap 15.5
…
🌟  Enabled addons: storage-provisioner, default-storageclass, ingress
🏄  Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default

$ mkdir -p '/tmp/awx'
$ cd '/tmp/awx'

$ cat <<EOF > 'namespace.yaml'
---
apiVersion: v1
kind: Namespace
metadata:
  name: awx
EOF
$ cat <<EOF > 'kustomization.yaml'
---
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
namespace: awx
resources:
  - namespace.yaml
helmCharts:
  - name: awx-operator
    repo: https://ansible.github.io/awx-operator/
    version: 2.14.0
    releaseName: awx-operator
    includeCRDs: true
EOF
$ minikube kubectl -- apply -f <(minikube kubectl -- kustomize --enable-helm)
namespace/awx created
customresourcedefinition.apiextensions.k8s.io/awxbackups.awx.ansible.com created
…
deployment.apps/awx-operator-controller-manager created
$ minikube kubectl -- -n 'awx' get pods
NAME                                               READY   STATUS    RESTARTS   AGE
awx-operator-controller-manager-787d4945fb-fdffx   2/2     Running   0          3m36s

$ cat <<EOF > 'awx-demo.yaml'
---
apiVersion: awx.ansible.com/v1beta1
kind: AWX
metadata:
  name: awx-demo
spec:
  service_type: nodeport
EOF
$ yq -iy '.resources+=["awx-demo.yaml"]' 'kustomization.yaml'
$ minikube kubectl -- apply -f <(minikube kubectl -- kustomize --enable-helm)
namespace/awx unchanged
…
deployment.apps/awx-operator-controller-manager unchanged
awx.awx.ansible.com/awx-demo created
$ minikube kubectl -- -n 'awx' get pods
NAME                                               READY   STATUS      RESTARTS   AGE
awx-demo-migration-24.1.0-zwv8w                    0/1     Completed   0          115s
awx-demo-postgres-15-0                             1/1     Running     0          10m
awx-demo-task-9c4655cb9-cmz87                      4/4     Running     0          8m3s
awx-demo-web-77f65cc65f-qhqrm                      3/3     Running     0          8m4s
awx-operator-controller-manager-787d4945fb-fdffx   2/2     Running     0          14m

$ # Default user is 'admin'.
$ minikube kubectl -- -n 'awx' get secret 'awx-demo-admin-password' -o jsonpath="{.data.password}" | base64 --decode
DgHIaA9onZj106osEmvECigzsBqutHqI
$ xdg-open $(minikube service -n 'awx' 'awx-demo-service' --url)

$ minikube kubectl -- delete -f <(minikube kubectl -- kustomize --enable-helm)

1. AMD64, Mac OS X, EKS

$ mkdir -p '/tmp/awx'
$ cd '/tmp/awx'

$ cat <<EOF > 'namespace.yaml'
---
apiVersion: v1
kind: Namespace
metadata:
  name: awx
EOF
$ cat <<EOF > 'kustomization.yaml'
---
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
namespace: awx
resources:
  - namespace.yaml
helmCharts:
  - name: awx-operator
    repo: https://ansible.github.io/awx-operator/
    version: 2.19.1
    releaseName: awx-operator
    includeCRDs: true
EOF
$ kubectl kustomize --enable-helm | kubectl apply -f -
namespace/awx created
…
deployment.apps/awx-operator-controller-manager created
$ kubectl get pods -n 'awx'
NAME                                               READY   STATUS    RESTARTS   AGE
awx-operator-controller-manager-3361cfab38-tdgt3   2/2     Running   0          13s

$ cat <<EOF > 'awx-demo.yaml'
---
apiVersion: awx.ansible.com/v1beta1
kind: AWX
metadata:
  name: awx-demo
spec:
  admin_email: me@example.org
  no_log: false
  node_selector: |
    kubernetes.io/arch: amd64
  service_type: LoadBalancer
  ingress_type: ingress
  ingress_annotations: |
    kubernetes.io/ingress.class: alb
EOF
$ yq -iy '.resources+=["awx-demo.yaml"]' 'kustomization.yaml'
$ kubectl kustomize --enable-helm | kubectl apply -f -
namespace/awx unchanged
…
deployment.apps/awx-operator-controller-manager unchanged
awx.awx.ansible.com/awx-demo created
$ kubectl -n 'awx' get pods
NAME                                               READY   STATUS      RESTARTS   AGE
awx-demo-migration-24.1.0-zwv8w                    0/1     Completed   0          115s
awx-demo-postgres-15-0                             1/1     Running     0          10m
awx-demo-task-8e34efc56-w5rc5                      4/4     Running     0          8m3s
awx-demo-web-545gbdgg7b-q2q4m                      3/3     Running     0          8m4s
awx-operator-controller-manager-3361cfab38-tdgt3   2/2     Running     0          14m

$ # Default user is 'admin'.
$ kubectl -n 'awx' get secret 'awx-demo-admin-password' -o jsonpath="{.data.password}" | base64 --decode
IDwYOgL9k2ckaXmqMm6PT4d6TXdJcocd
$ kubectl -n 'awx' get ingress 'awx-demo-ingress' -o jsonpath='{.status.loadBalancer.ingress[*].hostname}' \
  | xargs -I{} open http://{}

$ kubectl kustomize --enable-helm | kubectl delete -f -
namespace "awx" deleted
…
awx.awx.ansible.com "awx-demo" deleted
deployment.apps "awx-operator-controller-manager" deleted

API

Refer AWX API Reference and How to use AWX REST API to execute jobs.

AWX offers the awx client CLI tool:

# Install the 'awx' client
pipx install 'awxkit'
pip3 install --user 'awxkit'

# Normally `awx` would require setting the configuration every command like so:
#   awx --conf.host https://awx.example.org --conf.username 'admin' --conf.password 'password' config
#   awx --conf.host https://awx.example.org --conf.username 'admin' --conf.password 'password' export --schedules

# Export settings to environment variables to avoid having to set them on the command line all the time
export TOWER_HOST='https://awx.example.org' TOWER_USERNAME='admin' TOWER_PASSWORD='password'

# Show the client configuration
awx … config

# List all available endpoints
curl -fs --user 'admin:password' 'https://awx.example.org/api/v2/' | jq '.' -

# List instance groups
awx instance_groups list

# Show instance groups
awx instance_groups get 'default'

# List jobs
awx jobs list
awx jobs list -f 'yaml'
awx jobs list -f 'human' --filter 'name,created,status'
awx jobs list -f 'jq' --filter '.results[] | .name + " is " + .status'

# Show job templates
awx job_templates list
curl -fs --user 'admin:password' 'https://awx.example.org/api/v2/job_templates/' | jq '.' -
awx job_templates get 'Some Job'

# Show notification templates
awx … notification_templates list
curl -fs --user 'admin:password' 'https://awx.example.org/api/v2/notification_templates/' | jq '.' -

# Show schedules
awx … schedules list
awx … schedules --schedules 'schedule-1' 'schedule-n'
awx schedules get 'Some Schedule'
curl -fs --user 'admin:password' 'https://awx.example.org/api/v2/schedules/' | jq '.' -

# Export data
awx … export
awx … export --job_templates 'job-template-1' 'job-template-n' --schedules
curl -fs --user 'admin:password' 'https://awx.example.org/api/v2/export/' | jq '.' -

Refer AWX Command Line Interface for more information.

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