Use compose-go + improvements (#9)

Use compose-go https://github.com/compose-spec/compose-go  to make Katenary parsing compose file the official way.
Add labels:
- `volume-from` (with `same-pod`) to avoid volume repetition
- `ignore` to ignore a service
- `mapenv` (replaces the `env-to-service`) to map environment to helm variable (as a template string)
- `secret-vars` declares variables as secret values

More:
- Now, environment (as secret vars) are set in values.yaml
- Ingress has got annotations in values.yaml
- Probes (liveness probe) are improved
- fixed code to optimize
- many others fixes about path, bad volume check, refactorisation, tests...

examples/ghost/chart/ghost/Chart.yaml

@@ -0,0 +1,8 @@
+# Create on 2022-05-05T14:16:27+02:00
+# Katenary command line: /tmp/go-build669507924/b001/exe/main convert
+apiVersion: v2
+appVersion: 0.0.1
+description: A helm chart for ghost
+name: ghost
+type: application
+version: 0.1.0

examples/ghost/chart/ghost/templates/NOTES.txt

@@ -0,0 +1,8 @@
+
+Congratulations,
+
+Your application is now deployed. This may take a while to be up and responding.
+
+{{ if .Values.blog.ingress.enabled -}}
+- blog is accessible on : http://{{ .Values.blog.ingress.host }}
+{{- end }}

examples/ghost/chart/ghost/templates/blog.deployment.yaml

@@ -0,0 +1,33 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: '{{ .Release.Name }}-blog'
+  labels:
+    katenary.io/component: blog
+    katenary.io/project: ghost
+    katenary.io/release: '{{ .Release.Name }}'
+  annotations:
+    katenary.io/docker-compose-sha1: 0c2bbf548ff569c3dc5d77dc158e98bbe86fb5d4
+    katenary.io/version: master
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      katenary.io/component: blog
+      katenary.io/release: '{{ .Release.Name }}'
+  template:
+    metadata:
+      labels:
+        katenary.io/component: blog
+        katenary.io/release: '{{ .Release.Name }}'
+    spec:
+      containers:
+        - name: blog
+          image: '{{ .Values.blog.image }}'
+          ports:
+            - name: blog
+              containerPort: 2368
+          env:
+            - name: url
+              value: http://{{ .Values.blog.ingress.host }}
+

examples/ghost/chart/ghost/templates/blog.ingress.yaml

@@ -0,0 +1,42 @@
+{{- if .Values.blog.ingress.enabled -}}
+{{- if semverCompare ">=1.19-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1
+{{- else if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: '{{ .Release.Name }}-blog'
+  labels:
+    katenary.io/component: blog
+    katenary.io/project: ghost
+    katenary.io/release: '{{ .Release.Name }}'
+  annotations:
+    katenary.io/docker-compose-sha1: 0c2bbf548ff569c3dc5d77dc158e98bbe86fb5d4
+    katenary.io/version: master
+spec:
+  {{- if and .Values.blog.ingress.class (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion) }}
+  ingressClassName: '{{ .Values.blog.ingress.class }}'
+  {{- end }}
+  rules:
+    - host: '{{ .Values.blog.ingress.host }}'
+      http:
+        paths:
+          - path: /
+            {{- if semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion }}
+            pathType: Prefix
+            {{- end }}
+            backend:
+              {{- if semverCompare ">=1.19-0" .Capabilities.KubeVersion.GitVersion }}
+              service:
+                name: '{{ .Release.Name }}-blog'
+                port:
+                  number: 2368
+              {{- else }}
+              serviceName: '{{ .Release.Name }}-blog'
+              servicePort: 2368
+              {{- end }}
+
+{{- end -}}

examples/ghost/chart/ghost/templates/blog.service.yaml

@@ -0,0 +1,19 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: '{{ .Release.Name }}-blog'
+  labels:
+    katenary.io/component: blog
+    katenary.io/project: ghost
+    katenary.io/release: '{{ .Release.Name }}'
+  annotations:
+    katenary.io/docker-compose-sha1: 0c2bbf548ff569c3dc5d77dc158e98bbe86fb5d4
+    katenary.io/version: master
+spec:
+  selector:
+    katenary.io/component: blog
+    katenary.io/release: '{{ .Release.Name }}'
+  ports:
+    - protocol: TCP
+      port: 2368
+      targetPort: 2368

examples/ghost/chart/ghost/values.yaml

@@ -0,0 +1,6 @@
+blog:
+  image: ghost
+  ingress:
+    class: nginx
+    enabled: false
+    host: blog.ghost.tld