refactoring: Breakdown fission-all chart into components and removed fission-core (#2224)

* Sync a few files from fission-all to fission-core chart
* Change values in fission-all chart
We keep the following components by default disabled now, which were enabled by default earlier.

1. nats - Fission Nats integration
2. influxdb - Influxdb and logger component
3. prometheus - Prometheus disabled by default
4. canaryDeployment - Disabled by default

This change reduces the need for a fission-core chart and we can configure
values of fission-all so that it can provide the behaviour of fission-all
as well as fission-core.

* Remove fission-core chart
* Add README in the fission-all chart
* Rename clusterrolebinding fission-crd to fission-cr-admin
* Add icon and sources in helm chart

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

charts/fission-all/templates/misc-functions/clusterrole.yaml

@@ -0,0 +1,33 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: secret-configmap-getter
+rules:
+  - apiGroups:
+      - "*"
+    resources:
+      - secrets
+      - configmaps
+    verbs:
+      - get
+      - watch
+      - list
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: package-getter
+rules:
+  - apiGroups:
+      - "*"
+    resources:
+      - packages
+    verbs:
+      - "*"
+  - apiGroups:
+      - rbac.authorization.k8s.io
+    resources:
+      - rolebindings
+    verbs:
+      - "*"

charts/fission-all/templates/misc-functions/namespace.yaml

@@ -0,0 +1,24 @@
+{{- if .Values.createNamespace }}
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: {{ .Values.functionNamespace }}
+  labels:
+    name: fission-function
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+    {{- if .Values.enableIstio }}
+    istio-injection: enabled
+    {{- end }}
+
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: {{ .Values.builderNamespace }}
+  labels:
+    name: fission-builder
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+    {{- if .Values.enableIstio }}
+    istio-injection: enabled
+    {{- end }}
+{{- end }}

charts/fission-all/templates/misc-functions/role.yaml

@@ -0,0 +1,70 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: fission-fetcher
+  namespace: default
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - configmaps
+      - secrets
+      - pods
+    verbs:
+      - get
+      - list
+      - watch
+  - apiGroups:
+      - ""
+    resources:
+      - events
+    verbs:
+      - "*"
+  - apiGroups:
+      - fission.io
+    resources:
+      - canaryconfigs
+      - environments
+      - functions
+      - httptriggers
+      - kuberneteswatchtriggers
+      - messagequeuetriggers
+      - packages
+      - timetriggers
+    verbs:
+      - "*"
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: fission-builder
+  namespace: default
+rules:
+  - apiGroups:
+      - fission.io
+    resources:
+      - canaryconfigs
+      - environments
+      - functions
+      - httptriggers
+      - kuberneteswatchtriggers
+      - messagequeuetriggers
+      - packages
+      - timetriggers
+    verbs:
+      - "*"
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  namespace: {{ .Values.functionNamespace }}
+  name: event-fetcher
+rules:
+  - apiGroups: [""] # "" indicates the core API group
+    resources: ["pods"]
+    verbs: ["get", "watch", "list"]
+  - apiGroups: [""] # "" indicates the core API group
+    resources: ["events"]
+    verbs: ["*"]

charts/fission-all/templates/misc-functions/rolebinding.yaml

@@ -0,0 +1,43 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: fission-fetcher
+  namespace: default
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: fission-fetcher
+subjects:
+  - kind: ServiceAccount
+    name: fission-fetcher
+    namespace: {{ .Values.functionNamespace }}
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: fission-builder
+  namespace: default
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: fission-builder
+subjects:
+  - kind: ServiceAccount
+    name: fission-builder
+    namespace: {{ .Values.builderNamespace }}
+
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: fission-fetcher-pod-reader
+  namespace: {{ .Values.functionNamespace }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: event-fetcher
+subjects:
+  - kind: ServiceAccount
+    name: fission-fetcher
+    namespace: {{ .Values.functionNamespace }}

charts/fission-all/templates/misc-functions/serviceaccount.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: fission-fetcher
+  namespace: {{ .Values.functionNamespace }}
+
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: fission-builder
+  namespace: {{ .Values.builderNamespace }}