fix(common): improve probes (#787)

**Description**
There is a design mistake in the probe setup:

Liveness probe:
Stops the container on failure, this should happen AFTER readiness probe
detects failure.

Readiness Probe:
Stops the service forwarding traffic. This should happen BEFORE the
liveness probe detects failure

Startup Probe:
By having a tcp startup-probe, charts might pass CI when not fully
working. or, worse, get passed-over to the readiness/liveness probes
when the container is still doing maintenance work (such as plex
database updates). Leading to it right-away being thrown-out by
liveness/readyness

I also attempted to offset start of liveness and readyness, this ensures
they don't send probes at the same time, while making it most-likely
that liveness clears before readiness on startup.

While also offsetting the intervals, to prevent the same while running

**⚙️ 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

**🧪 How Has This Been Tested?**
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**📃 Notes:**
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**✔️ Checklist:**

- [ ] ⚖️ My code follows the style guidelines of this project
- [ ] 👀 I have performed a self-review of my own code
- [ ] #️⃣ I have commented my code, particularly in hard-to-understand
areas
- [ ] 📄 I have made corresponding changes to the documentation
- [ ] ⚠️ My changes generate no new warnings
- [ ] 🧪 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
- [ ] I made sure the title starts with `feat(chart-name):`,
`fix(chart-name):` or `chore(chart-name):`

**➕ 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`

---

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library/common/Chart.yaml

@@ -15,7 +15,7 @@ maintainers:
 name: common
 sources: null
 type: library
-version: 20.3.10
+version: 20.3.11
 annotations:
   artifacthub.io/category: "integration-delivery"
   artifacthub.io/license: "BUSL-1.1"

library/common/templates/lib/container/_probes.tpl

@@ -90,6 +90,7 @@ objectData: The object data to be used to render the container.
       {{- fail (printf "Container - Expected [probes] [successThreshold] to be 1 on [%s] probe" $probeName) -}}
     {{- end -}}
   {{- end }}
+
 initialDelaySeconds: {{ $timeouts.initialDelaySeconds }}
 failureThreshold: {{ $timeouts.failureThreshold }}
 successThreshold: {{ $timeouts.successThreshold }}

library/common/values.yaml

@@ -34,21 +34,21 @@ global:
     # -- Default probe timeouts
     probeTimeouts:
       liveness:
-        initialDelaySeconds: 10
-        periodSeconds: 10
+        initialDelaySeconds: 12
+        periodSeconds: 15
         timeoutSeconds: 5
         failureThreshold: 5
         successThreshold: 1
       readiness:
         initialDelaySeconds: 10
-        periodSeconds: 10
+        periodSeconds: 12
         timeoutSeconds: 5
-        failureThreshold: 5
+        failureThreshold: 4
         successThreshold: 2
       startup:
         initialDelaySeconds: 10
         periodSeconds: 5
-        timeoutSeconds: 2
+        timeoutSeconds: 3
         failureThreshold: 60
         successThreshold: 1
     # -- Define a postgresql version for CNPG
@@ -200,7 +200,7 @@ workload:
               port: "{{ $.Values.service.main.ports.main.targetPort | default .Values.service.main.ports.main.port }}"
             startup:
               enabled: true
-              type: "tcp"
+              type: "{{ .Values.service.main.ports.main.protocol }}"
               port: "{{ $.Values.service.main.ports.main.targetPort | default .Values.service.main.ports.main.port }}"
 
 # -- Timezone used everywhere applicable