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https://github.com/Expand-sys/awx-on-k3s
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docs: add examples to add extra settings using configmap or secrets (#345)
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kurokobo
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<!-- omit in toc -->
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# Pass values from Secrets to `extra_settings`
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# Pass values from Secrets to `extra_settings`
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Currently, AWX Operator does not ability to inject Secrets to `extra_settings`.
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Currently, AWX Operator does not ability to inject Secrets to `extra_settings`.
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However, since Secrets are injectable for environment variables, we can indirectly inject values from Secrets into `extra_settings` by specifying values that refers to the environment variables.
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However, since Secrets are injectable for environment variables, we can indirectly inject values from Secrets into `extra_settings` by specifying values that refers to the environment variables.
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<!-- omit in toc -->
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## Table of Contents
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- [Concept](#concept)
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- [Simple examples](#simple-examples)
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- [Complex examples](#complex-examples)
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- [Appendix: Add extra settings by mounting settings files instead of using `extra_settings`](#appendix-add-extra-settings-by-mounting-settings-files-instead-of-using-extra_settings)
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- [Add extra settings by mounting ConfigMap](#add-extra-settings-by-mounting-configmap)
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- [Refer sensitive values from Secrets from the settings files](#refer-sensitive-values-from-secrets-from-the-settings-files)
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- [Embed sensitive values directly into the settings files](#embed-sensitive-values-directly-into-the-settings-files)
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## Concept
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## Concept
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Since the values for `extra_settings` will be embedded as Python code into `settings.py`, we can use any python code as values for `extra_settings`. So the key concepts are:
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Since the values for `extra_settings` will be embedded as Python code into `settings.py`, we can use any python code as values for `extra_settings`. So the key concepts are:
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@ -154,3 +166,216 @@ data:
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> ```python
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> ```python
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> "x509cert": os.getenv("SAML_IDP_SIGNING_CERT").replace("\n", "").replace("-----BEGIN CERTIFICATE-----", "").replace("-----END CERTIFICATE----", ""),
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> "x509cert": os.getenv("SAML_IDP_SIGNING_CERT").replace("\n", "").replace("-----BEGIN CERTIFICATE-----", "").replace("-----END CERTIFICATE----", ""),
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> ```
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> ```
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## Appendix: Add extra settings by mounting settings files instead of using `extra_settings`
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If you have a lot of settings to add, or want to pass dictionaries or lists, it might be hard to maintain them in `extra_settings`.
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In that case, you can create settings files as pure Python code and mount them under `/etc/tower/conf.d` directory on the task and web pods, since AWX reads any `*.py` files in `/etc/tower/conf.d` directory as settings files on its start up.
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### Add extra settings by mounting ConfigMap
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This is an example `extra_settings.py` file that contain multiple extra settings.
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```python
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AD_HOC_COMMANDS = [
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"command",
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"shell",
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"yum",
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"apt",
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"apt_key",
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"apt_repository",
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"apt_rpm",
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"service",
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"group",
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"user",
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"mount",
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"ping",
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"selinux",
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"setup",
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"win_ping",
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"win_service",
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"win_updates",
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"win_group",
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"win_user",
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]
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AWX_ISOLATION_SHOW_PATHS = [
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"/etc/pki/ca-trust:/etc/pki/ca-trust:O",
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"/usr/share/pki:/usr/share/pki:O",
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]
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AWX_TASK_ENV = {
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"HTTPS_PROXY": "http://proxy.example.com:3128",
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"HTTP_PROXY": "http://proxy.example.com:3128",
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"NO_PROXY": "127.0.0.1,localhost,.example.com",
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}
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GALAXY_TASK_ENV = {
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"ANSIBLE_FORCE_COLOR": "false",
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"GIT_SSH_COMMAND": "ssh -o StrictHostKeyChecking=no"
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}
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```
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Create a ConfigMap with above `extra_settings.py` file.
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```bash
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kubectl -n awx create configmap awx-extra-settings-configmap --from-file=extra_settings.py
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```
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Then, mount the ConfigMap to the task and web pods.
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```yaml
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---
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apiVersion: awx.ansible.com/v1beta1
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kind: AWX
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metadata:
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name: awx
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spec:
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...
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extra_volumes: |
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- name: awx-extra-settings
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configMap:
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name: awx-extra-settings-configmap
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items:
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- key: extra_settings.py
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path: extra_settings.py
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task_extra_volume_mounts: |
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- name: awx-extra-settings
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mountPath: /etc/tower/conf.d/extra_settings.py
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subPath: extra_settings.py
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web_extra_volume_mounts: |
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- name: awx-extra-settings
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mountPath: /etc/tower/conf.d/extra_settings.py
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subPath: extra_settings.py
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```
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### Refer sensitive values from Secrets from the settings files
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If you want to embed the values from Secrets into the settings files, you can use `os.getenv()` in `extra_settings.py` as well.
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```python
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import os
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...
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SOCIAL_AUTH_AZUREAD_OAUTH2_KEY = os.getenv("AZUREAD_OAUTH2_KEY")
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SOCIAL_AUTH_AZUREAD_OAUTH2_SECRET = os.getenv("AZUREAD_OAUTH2_SECRET")
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SOCIAL_AUTH_SAML_ENABLED_IDPS = {
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"saml_ms_adfs": {
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"x509cert": os.getenv("SAML_IDP_SIGNING_CERT"),
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...
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}
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}
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```
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```yaml
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---
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apiVersion: awx.ansible.com/v1beta1
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kind: AWX
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metadata:
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name: awx
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spec:
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...
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task_extra_env: |
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- name: AZUREAD_OAUTH2_KEY
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valueFrom:
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secretKeyRef:
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name: awx-azuread-oauth2-secret
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key: key
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- name: AZUREAD_OAUTH2_SECRET
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valueFrom:
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secretKeyRef:
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name: awx-azuread-oauth2-secret
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key: secret
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- name: SAML_IDP_SIGNING_CERT
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valueFrom:
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secretKeyRef:
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name: awx-saml-idp-signing-cert
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key: x509cert
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web_extra_env: |
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- name: AZUREAD_OAUTH2_KEY
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valueFrom:
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secretKeyRef:
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name: awx-azuread-oauth2-secret
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key: key
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- name: AZUREAD_OAUTH2_SECRET
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valueFrom:
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secretKeyRef:
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name: awx-azuread-oauth2-secret
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key: secret
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- name: SAML_IDP_SIGNING_CERT
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valueFrom:
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secretKeyRef:
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name: awx-saml-idp-signing-cert
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key: x509cert
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extra_volumes: |
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- name: awx-extra-settings
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configMap:
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name: awx-extra-settings-configmap
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items:
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- key: extra_settings.py
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path: extra_settings.py
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task_extra_volume_mounts: |
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- name: awx-extra-settings
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mountPath: /etc/tower/conf.d/extra_settings.py
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subPath: extra_settings.py
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web_extra_volume_mounts: |
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- name: awx-extra-settings
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mountPath: /etc/tower/conf.d/extra_settings.py
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subPath: extra_settings.py
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```
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### Embed sensitive values directly into the settings files
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Alternatively, if you want to embed sensitive values into the settings files directly, you can store `extra_settings.py` as a Secret instead of a ConfigMap.
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```python
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import os
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...
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SOCIAL_AUTH_AZUREAD_OAUTH2_KEY = "****************"
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SOCIAL_AUTH_AZUREAD_OAUTH2_SECRET = "****************"
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SOCIAL_AUTH_SAML_ENABLED_IDPS = {
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"saml_ms_adfs": {
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"x509cert": "MIIDZTCC........6xGPxz26",
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...
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}
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}
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```
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```bash
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kubectl -n awx create secret generic awx-extra-settings-secret --from-file=extra_settings.py
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```
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```yaml
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---
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apiVersion: awx.ansible.com/v1beta1
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kind: AWX
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metadata:
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name: awx
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spec:
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...
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extra_volumes: |
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- name: awx-extra-settings
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secret:
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secretName: awx-extra-settings-secret
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items:
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- key: extra_settings.py
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path: extra_settings.py
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task_extra_volume_mounts: |
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- name: awx-extra-settings
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mountPath: /etc/tower/conf.d/extra_settings.py
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subPath: extra_settings.py
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web_extra_volume_mounts: |
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- name: awx-extra-settings
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mountPath: /etc/tower/conf.d/extra_settings.py
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subPath: extra_settings.py
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```
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