Liveness probe (#529)

* add file structure and success/failure yaml files

* add success/fail check tests for liveness probe missing

* add success/fail check tests for readiness probe missing

* add cpu limit missing success/failure

* add cpu requests missing success/failure

* add hostPortMissing success/failure

* add readinessProbeMissing success/failure

* delete misspelled file folder readinessProb
Co-authored-by: Robert Brennan <accounts@rbren.io>

test/checks/cpuLimitsMissing/failure.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  name: nginx
+  labels:
+    app.kubernetes.io/name: nginx
+spec:
+  containers:
+  - name: nginx 
+    image: nginx
+    resources: 
+      limits: 
+        memory: 128Mi
\ No newline at end of file

test/checks/cpuLimitsMissing/success.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  name: nginx
+  labels:
+    app.kubernetes.io/name: nginx
+spec:
+  containers:
+  - name: nginx 
+    image: nginx
+    resources: 
+      limits: 
+        memory: 256Mi
+        cpu: 100m
\ No newline at end of file

test/checks/cpuRequestsMissing/failure.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  name: nginx
+  labels:
+    app.kubernetes.io/name: nginx
+spec:
+  containers:
+  - name: nginx 
+    image: nginx
+    resources: 
+      requests: 
+        memory: 128Mi
\ No newline at end of file

test/checks/cpuRequestsMissing/success.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  name: nginx
+  labels:
+    app.kubernetes.io/name: nginx
+spec:
+  containers:
+  - name: nginx 
+    image: nginx
+    resources: 
+      requests: 
+        memory: 256Mi
+        cpu: 100m
\ No newline at end of file

test/checks/hostPortSet/failure.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  name: nginx
+  labels:
+    app.kubernetes.io/name: nginx
+spec:
+  containers:
+  - name: nginx 
+    image: nginx
+    ports: 
+    - containerPort: 80
+      hostPort: 8080

test/checks/hostPortSet/success.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  name: nginx
+  labels:
+    app.kubernetes.io/name: nginx
+spec:
+  containers:
+  - name: nginx 
+    image: nginx
+    ports: 
+    - containerPort: 80
\ No newline at end of file

test/checks/livenessProbeMissing/failure.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    test: liveness
+  name: liveness-exec
+spec:
+  containers:
+  - name: liveness
+    image: k8s.gcr.io/busybox
+    args:
+    - /bin/sh
+    - -c
+    - touch /tmp/healthy; sleep 30; rm -rf /tmp/healthy; sleep 600.
\ No newline at end of file

test/checks/livenessProbeMissing/success.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    test: liveness
+  name: liveness-exec
+spec:
+  containers:
+  - name: liveness
+    image: k8s.gcr.io/busybox
+    args:
+    - /bin/sh
+    - -c
+    - touch /tmp/healthy; sleep 30; rm -rf /tmp/healthy; sleep 600
+    livenessProbe:
+      exec:
+        command:
+        - cat
+        - /tmp/healthy
+      initialDelaySeconds: 5
+      periodSeconds: 5
\ No newline at end of file

test/checks/readinessProbeMissing/failure.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    test: readiness
+  name: readiness-exec
+spec:
+  containers:
+  - name: readiness
+    image: k8s.gcr.io/busybox
+    args:
+    - /bin/sh
+    - -c
+    - touch /tmp/healthy; sleep 30; rm -rf /tmp/healthy; sleep 600.
\ No newline at end of file

test/checks/readinessProbeMissing/success.yaml

+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    test: readiness
+  name: readiness-exec
+spec:
+  containers:
+  - name: readiness
+    image: k8s.gcr.io/busybox
+    args:
+    - /bin/sh
+    - -c
+    - touch /tmp/healthy; sleep 30; rm -rf /tmp/healthy; sleep 600
+    readinessProbe:
+      exec:
+        command:
+        - cat
+        - /tmp/healthy
+      initialDelaySeconds: 5
+      periodSeconds: 5
\ No newline at end of file