fix(guacamole) Guacamole Duo integration environment variables changes (#41223)

**Description**
<!--
Guacamole 1.6.0 with Duo two-factor authentication mechanism uses the
new Duo service v4, which requires different environment variables to be
defined
-->
⚒️ Fixes  # <!--(issue)-->

**⚙️ Type of change**

- [ ] ⚙️ Feature/App addition
- [X] 🪛 Bugfix
- [ ] ⚠️ Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] 🔃 Refactor of current code
- [ ] 📜 Documentation Changes

**🧪 How Has This Been Tested?**
<!--
- Created the environment variables for the main workload to validate
that these variables (according to guacamole documentation) work as
expected
- Ran the helm template to validate that the variables defined in the
standard way as overrides are defined in the guacamole pod
-->

**📃 Notes:**
<!-- Please enter any other relevant information here -->

**✔️ Checklist:**

- [X] ⚖️ My code follows the style guidelines of this project
- [X] 👀 I have performed a self-review of my own code
- [-] #️⃣ I have commented my code, particularly in hard-to-understand
areas
- [-] 📄 I have made changes to the documentation
- [-] 🧪 I have added tests to this description that prove my fix is
effective or that my feature works
- [-] ⬆️ I increased versions for any altered app according to semantic
versioning
- [X] I made sure the title starts with `feat(chart-name):`,
`fix(chart-name):`, `chore(chart-name):`, `docs(chart-name):` or
`fix(docs):`

**➕ App addition**

If this PR is an app addition please make sure you have done the
following.

- [-] 🖼️ I have added an icon in the Chart's root directory called
`icon.png`

---

_Please don't blindly check all the boxes. Read them and only check
those that apply.
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---------

Signed-off-by: Christian Tardif <christian.tardif@servinfo.ca>

charts/stable/guacamole/Chart.yaml

@@ -40,5 +40,5 @@ sources:
   - https://hub.docker.com/r/guacamole/guacamole
   - https://hub.docker.com/r/guacamole/guacd
 type: application
-version: 16.11.1
+version: 16.11.2
 

charts/stable/guacamole/templates/_configmap.tpl

@@ -84,9 +84,9 @@ guacamole-config:
   {{/* DUO */}}
   {{- if (get .Values.guacamole "duo").DUO_API_HOSTNAME }}
     {{ include "guac.env" (dict "ob" "duo" "key" "DUO_API_HOSTNAME" "rootCtx" $) }}
-    {{ include "guac.env" (dict "ob" "duo" "key" "DUO_INTEGRATION_KEY" "rootCtx" $) }}
-    {{ include "guac.env" (dict "ob" "duo" "key" "DUO_SECRET_KEY" "rootCtx" $) }}
-    {{ include "guac.env" (dict "ob" "duo" "key" "DUO_APPLICATION_KEY" "rootCtx" $) }}
+    {{ include "guac.env" (dict "ob" "duo" "key" "DUO_CLIENT_ID" "rootCtx" $) }}
+    {{ include "guac.env" (dict "ob" "duo" "key" "DUO_CLIENT_SECRET" "rootCtx" $) }}
+    {{ include "guac.env" (dict "ob" "duo" "key" "DUO_REDIRECT_URI" "rootCtx" $) }}
   {{- end }}
   {{/* API */}}
     {{ include "guac.env" (dict "ob" "api" "key" "API_SESSION_TIMEOUT" "rootCtx" $) }}

charts/stable/guacamole/values.yaml

@@ -59,9 +59,9 @@ guacamole:
   # TOTP_MODE: sha1
   duo: {}
   # DUO_API_HOSTNAME: ""
-  # DUO_INTEGRATION_KEY: ""
-  # DUO_SECRET_KEY: ""
-  # DUO_APPLICATION_KEY: ""
+  # DUO_CLIENT_ID: ""
+  # DUO_CLIENT_SECRET: ""
+  # DUO_REDIRECT_URI: ""
   radius: {}
   # RADIUS_SHARED_SECRET: ""
   # RADIUS_AUTH_PROTOCOL: eap-tls