Merge pull request 2i2c-org#16 from GeorgianaElena/helm-chart

Create a helm chart for this project

.pre-commit-config.yaml

@@ -29,13 +29,12 @@ repos:
     hooks:
       - id: black
 
-  # Autoformat: markdown, yaml
+  # Autoformat: markdown, yaml (but not helm templates)
   - repo: https://github.com/pre-commit/mirrors-prettier
     rev: v4.0.0-alpha.8
     hooks:
       - id: prettier
-        # Don't run prettier on our jinja2 template files. We run djlint instead
-        exclude: "kubespawner/templates/.*\\.html"
+        exclude: helm-chart/templates/.*
 
   # Misc...
   - repo: https://github.com/pre-commit/pre-commit-hooks

Dockerfile

@@ -1,10 +1,11 @@
 FROM python:3.12.5-slim-bullseye
 
-RUN apt-get update && apt-get install -y git
-
 RUN pip3 install gunicorn
 
-RUN git clone https://github.com/2i2c-org/unnamed-thingity-thing /opt
-WORKDIR /opt
+RUN mkdir /opt/unnamed-thingity-thing
+
+COPY . /opt/unnamed-thingity-thing
+
+WORKDIR /opt/unnamed-thingity-thing
 
 RUN pip3 install -r requirements.txt

helm-chart/.helmignore

@@ -0,0 +1,23 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

helm-chart/Chart.yaml

@@ -0,0 +1,5 @@
+apiVersion: v2
+name: unnamed
+description: A Helm chart for Kubernetes
+version: 0.1.0
+appVersion: "1.16.0"

helm-chart/templates/_helpers.tpl

@@ -0,0 +1,51 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "unnamed.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "unnamed.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "unnamed.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "unnamed.labels" -}}
+helm.sh/chart: {{ include "unnamed.chart" . }}
+{{ include "unnamed.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "unnamed.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "unnamed.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}

helm-chart/templates/deployment.yaml

@@ -0,0 +1,56 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "unnamed.fullname" . }}
+  labels:
+    {{- include "unnamed.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "unnamed.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "unnamed.selectorLabels" . | nindent 8 }}
+    spec:
+      initContainers:
+        - name: db-migrate
+          image: {{ .Values.image.repository }}:{{ .Values.image.tag }}
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          command:
+            - python
+            - ./comptest/manage.py
+            - migrate
+          securityContext:
+            runAsUser: 0
+          volumeMounts:
+            - name: db
+              mountPath: /mnt
+              readOnly: false
+      containers:
+        - name: run-app
+          image: {{ .Values.image.repository }}:{{ .Values.image.tag }}
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          workingDir: /opt/unnamed-thingity-thing/comptest
+          ports:
+            - name: http
+              containerPort: {{ .Values.service.port }}
+              protocol: TCP
+          command:
+            - gunicorn
+            - comptest.wsgi
+          securityContext:
+            runAsUser: 0
+          volumeMounts:
+            - name: db
+              mountPath: /mnt
+              readOnly: false
+      volumes:
+        - name: db
+          persistentVolumeClaim:
+            claimName: db-pvc

helm-chart/templates/ingress.yaml

@@ -0,0 +1,35 @@
+{{- if .Values.ingress.enabled -}}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ include "unnamed.fullname" . }}
+  labels:
+    {{- include "unnamed.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- . | toYaml | nindent 4 }}
+  {{- end }}
+spec:
+  {{- with .Values.ingress.ingressClassName }}
+  ingressClassName: "{{ . }}"
+  {{- end }}
+  rules:
+    {{- range $host := .Values.ingress.hosts | default (list "") }}
+    - http:
+        paths:
+          - path: {{ $.Values.ingress.path }}
+            pathType: {{ $.Values.ingress.pathType }}
+            backend:
+              service:
+                name: {{ include "unnamed.fullname" $ }}
+                port:
+                  number: {{ $.Values.service.port }}
+      {{- if $host }}
+      host: {{ $host | quote }}
+      {{- end }}
+    {{- end }}
+  {{- with .Values.ingress.tls }}
+  tls:
+    {{- . | toYaml | nindent 4 }}
+  {{- end }}
+{{- end }}

helm-chart/templates/pvc.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: db-pvc
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      # To be updated with the actual storage size
+      storage: 1Gi

helm-chart/templates/service.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "unnamed.fullname" . }}
+  labels:
+    {{- include "unnamed.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - name: http
+      port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+  selector: {{ include "unnamed.selectorLabels" . | nindent 4 }}

helm-chart/values.yaml

@@ -0,0 +1,41 @@
+# Default values for helm-chart.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+image:
+  repository: "unnamed"
+  tag: "1.0.1"
+  pullPolicy: IfNotPresent
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+podAnnotations: {}
+
+podSecurityContext: {}
+
+securityContext: {}
+
+service:
+  type: ClusterIP
+  port: 8000
+
+ingress:
+  enabled: false
+  className: nginx
+  annotations: {}
+  hosts: []
+  path: /
+  pathType: Prefix
+  tls: []
+
+resources: {}
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}