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Kubernetes support (#85)

Browse source 
* Added a kubernetes example
* Added an helm chart for kubernetes usage
* Added README for the added examples
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Sébastien Huss 2019-06-07 00:17:30 +02:00 • committed by Jones Magloire
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# 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
*~
# Various IDEs
.project
.idea/
*.tmproj
.vscode/

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apiVersion: v1
appVersion: "1.2.1"
description: The simplest and most complete UI for your private registry
name: docker-registry-ui
home: https://github.com/Joxit/docker-registry-ui
keywords:
- docker
- registry
sources:
- https://github.com/Joxit/docker-registry-ui
version: 0.1.0

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# docker-registry-ui
[docker-registry-ui](https://joxit.dev/docker-registry-ui/) is the simplest and most complete UI for your private registry!
## TL;DR;
```bash
$ helm install .
```
## Introduction
This chart bootstraps a [docker-registry-ui](https://joxit.dev/docker-registry-ui/) deployment on a [Kubernetes](http://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
It also may deploy the [docker registry](https://docs.docker.com/registry/) if you havent have one already.
## Prerequisites
- Kubernetes 1.9+ with Beta APIs enabled
- PV provisioner support in the underlying infrastructure
## Installing the Chart
To install the chart with the release name `my-release`:
```bash
$ helm update --install my-release .
```
The command deploys docker-registry-ui on the Kubernetes cluster in the default configuration. The [configuration](#configuration) section lists the parameters that can be configured during installation.
> **Tip**: List all releases using `helm list`
## Uninstalling the Chart
To uninstall/delete the `my-release` deployment:
```bash
$ helm delete my-release
```
The command removes all the Kubernetes components associated with the chart and deletes the release.
## Configuration
The following table lists the configurable parameters of the Redmine chart and their default values.
| Parameter | Description | Default |
| --------------------------------- | ---------------------------------------- | ------------------------------------------------------- |
| `ui.title` | Title of the managed repository | `Docker registry UI` |
| `ui.delete_images` | Allow to delete image from the front-end | `false` |
| `ui.proxy` | The UI service act as a proxy of the registry | `true` |
| `ui.replicaCount` | Number of replicas to start | `1` |
| `ui.image.registry` | registry to pull the docker-registry-ui image from | `docker.io` |
| `ui.image.repository` | docker-registry-ui image name | `joxit/docker-registry-ui` |
| `ui.image.tag` | docker-registry-ui image tag (change to latest to have multi registry support) | `static` |
| `ui.image.pullPolicy` | docker-registry-ui image pull policy | `Always` |
| `ui.probe.liveness` | Ask kubernetes to check the service port for liveness | `true` |
| `ui.probe.readyness ` | Ask kubernetes to check the service port for readyness | `true` |
| `ui.service.type` | Desired service type | `ClusterIP` |
| `ui.service.port` | Service exposed port | `80` |
| `ui.ingress.enabled` | Create an ingress for docker-regstry-ui | `false` |
| `registry.external` | Use an already available registry | `false` |
| `registry.url` | URL of the existing registry | `http://localhost:5000` |
| `registry.replicaCount` | Number of replicas to start | `1` |
| `registry.image.registry` | registry to pull the docker-registry image from | `docker.io` |
| `registry.image.repository` | docker-registry-ui image name | `registry` |
| `registry.image.tag` | docker-registry-ui image tag | `2.6.2` |
| `registry.image.pullPolicy` | docker-registry-ui image pull policy | `Always` |
| `registry.probe.liveness` | Ask kubernetes to check the service port for liveness | `true` |
| `registry.probe.readyness ` | Ask kubernetes to check the service port for readyness | `true` |
| `registry.persistence.enabled` | Enable persistence using PVC for the registry | `false` |
| `registry.persistence.storageClass` | PVC Storage Class | `-` |
| `registry.persistence.size` | PVC Storage Request size | `1Gi` |
| `registry.service.type` | Desired service type | `ClusterIP` |
| `registry.service.port` | Service exposed port | `5000` |
| `registry.ingress.enabled` | Create an ingress for the regstry | `false` |
Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
```bash
$ helm upgrade --install my-release \
--set registry.external=true \
--set registry.url=http://registry.example.com:5000 \
.
```
Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,
```bash
$ helm upgrade --install my-release -f values.yaml .
```
> **Tip**: You can use the default [values.yaml](values.yaml)

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{{/* vim: set filetype=mustache: */}}
{{/*
Expand the name of the chart.
*/}}
{{- define "docker-registry-ui.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 "docker-registry-ui.fullname" -}}
{{- if .Values.ui.fullnameOverride -}}
{{- .Values.ui.fullnameOverride | trunc 63 | trimSuffix "-" -}}
{{- else -}}
{{- $name := default .Chart.Name .Values.nameOverride -}}
{{- if contains $name .Release.Name -}}
{{- printf "%s-ui" .Release.Name | trunc 63 | trimSuffix "-" -}}
{{- else -}}
{{- printf "%s-ui-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
{{- end -}}
{{- end -}}
{{- end -}}
{{- define "docker-registry.fullname" -}}
{{- if .Values.registry.fullnameOverride -}}
{{- .Values.registry.fullnameOverride | trunc 63 | trimSuffix "-" -}}
{{- else -}}
{{- $name := default .Chart.Name .Values.nameOverride -}}
{{- if contains $name .Release.Name -}}
{{- printf "%s-registry" .Release.Name | trunc 63 | trimSuffix "-" -}}
{{- else -}}
{{- printf "%s-registry-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
{{- end -}}
{{- end -}}
{{- end -}}
{{/*
Create chart name and version as used by the chart label.
*/}}
{{- define "docker-registry-ui.chart" -}}
{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
{{- end -}}
{{/*
Common labels
*/}}
{{- define "docker-registry-ui.labels" -}}
app: registry-ui
chart: {{ include "docker-registry-ui.chart" . }}
release: {{ .Release.Name }}
{{- if .Chart.AppVersion }}
app/version: {{ .Chart.AppVersion | quote }}
{{- end }}
{{- end -}}
{{- define "docker-registry-ui.matchLabels" -}}
app: registry-ui
release: {{ .Release.Name }}
{{- end -}}
{{- define "docker-registry.labels" -}}
app: registry
chart: {{ include "docker-registry-ui.chart" . }}
release: {{ .Release.Name }}
{{- if .Chart.AppVersion }}
app/version: {{ .Chart.AppVersion | quote }}
{{- end }}
{{- end -}}
{{- define "docker-registry.matchLabels" -}}
app: registry
release: {{ .Release.Name }}
{{- end -}}
{{- define "docker-registry-ui.probes" -}}
{{- if and .Values.ui.probe.liveness (eq .Values.ui.probe.liveness true) -}}
livenessProbe:
httpGet:
path: /
port: http
{{- end -}}
{{- if and .Values.ui.probe.readiness (eq .Values.ui.probe.readiness true) }}
readinessProbe:
httpGet:
path: /
port: http
{{- end -}}
{{- end -}}
{{- define "docker-registry.probes" -}}
{{- if and .Values.registry.probe.liveness (eq .Values.registry.probe.liveness true) -}}
livenessProbe:
httpGet:
path: /v2/
port: registry
{{- end -}}
{{- if and .Values.registry.probe.readiness (eq .Values.registry.probe.readiness true) }}
readinessProbe:
httpGet:
path: /v2/
port: registry
{{- end -}}
{{- end -}}
{{- define "docker-registry-ui.url-name" -}}
{{- if eq .Values.ui.proxy true -}}
REGISTRY_URL
{{- else -}}
URL
{{- end -}}
{{- end -}}
{{- define "docker-registry-ui.url-value" -}}
{{- if eq .Values.registry.external true -}}
{{ .Values.registry.url }}
{{- else -}}
{{- $fullName := include "docker-registry.fullname" . -}}
{{ printf "http://%s.%s:%.0f" $fullName .Release.Namespace .Values.registry.service.port }}
{{- end -}}
{{- end -}}
{{- define "docker-registry-ui.pull" -}}
{{- if eq .Values.registry.external true -}}
{{ .Values.registry.url }}
{{- else -}}
{{- if eq .Values.ui.proxy true -}}
{{- if eq .Values.ui.ingress.enabled true -}}
{{- $host := index .Values.ui.ingress.hosts 0 -}}
{{ $host.host }}
{{- else -}}
{{- $fullName := include "docker-registry-ui.fullname" . -}}
{{ printf "%s.%s:%.0f" $fullName .Release.Namespace .Values.ui.service.port }}
{{- end -}}
{{- else -}}
{{- if eq .Values.registry.ingress.enabled true -}}
{{- $host := index .Values.registry.ingress.hosts 0 -}}
{{ $host.host }}
{{- else -}}
{{- $fullName := include "docker-registry.fullname" . -}}
{{ printf "%s.%s:%.0f" $fullName .Release.Namespace .Values.registry.service.port }}
{{- end -}}
{{- end -}}
{{- end -}}
{{- end -}}

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{{- if eq .Values.registry.external false -}}
apiVersion: v1
kind: ConfigMap
metadata:
name: {{ include "docker-registry.fullname" . }}
labels:
{{ include "docker-registry.labels" . | indent 4 }}
data:
config.yml: |-
version: 0.1
log:
fields:
service: registry
storage:
delete:
enabled: true
cache:
blobdescriptor: inmemory
filesystem:
rootdirectory: /var/lib/registry
http:
addr: :5000
headers:
X-Content-Type-Options: [nosniff]
Access-Control-Allow-Origin: ['*']
Access-Control-Allow-Methods: ['HEAD', 'GET', 'OPTIONS', 'DELETE']
Access-Control-Allow-Headers: ['Authorization']
Access-Control-Max-Age: [1728000]
Access-Control-Allow-Credentials: [true]
Access-Control-Expose-Headers: ['Docker-Content-Digest']
{{- end -}}

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{{- if eq .Values.registry.external false -}}
apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ include "docker-registry.fullname" . }}
labels:
{{ include "docker-registry.labels" . | indent 4 }}
spec:
replicas: {{ .Values.registry.replicaCount }}
selector:
matchLabels:
{{ include "docker-registry.matchLabels" . | indent 6 }}
template:
metadata:
labels:
{{ include "docker-registry.matchLabels" . | indent 8 }}
spec:
{{- with .Values.imagePullSecrets }}
imagePullSecrets:
{{- toYaml . | nindent 8 }}
{{- end }}
volumes:
- name: config
configMap:
defaultMode: 420
name: {{ include "docker-registry.fullname" . }}
- name: data
{{- if .Values.registry.persistence.enabled }}
persistentVolumeClaim:
claimName: {{ include "docker-registry.fullname" . }}
{{- else }}
emptyDir: {}
{{- end }}
containers:
- name: registry
image: "{{ .Values.registry.image.registry }}/{{ .Values.registry.image.repository }}:{{ .Values.registry.image.tag }}"
imagePullPolicy: {{ .Values.registry.image.pullPolicy }}
ports:
- name: registry
containerPort: 5000
protocol: TCP
volumeMounts:
- mountPath: "/var/lib/registry"
name: "data"
- mountPath: "/etc/docker/registry"
name: "config"
{{ include "docker-registry.probes" . | indent 10 }}
resources:
{{- toYaml .Values.registry.resources | nindent 12 }}
{{- with .Values.nodeSelector }}
nodeSelector:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.tolerations }}
tolerations:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- end -}}

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{{- if and (eq .Values.registry.external false) (and (eq .Values.ui.proxy false) .Values.registry.ingress.enabled) -}}
{{- $fullName := include "docker-registry.fullname" . -}}
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: {{ $fullName }}
labels:
{{ include "docker-registry.labels" . | indent 4 }}
{{- with .Values.registry.ingress.annotations }}
annotations:
{{- toYaml . | nindent 4 }}
{{- end }}
spec:
{{- if .Values.registry.ingress.tls }}
tls:
{{- range .Values.registry.ingress.tls }}
- hosts:
{{- range .hosts }}
- {{ . | quote }}
{{- end }}
secretName: {{ .secretName }}
{{- end }}
{{- end }}
rules:
{{- range .Values.registry.ingress.hosts }}
- host: {{ .host | quote }}
http:
paths:
- path: /
backend:
serviceName: {{ $fullName }}
servicePort: registry
{{- end }}
{{- end -}}

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{{- if and (eq .Values.registry.external false) .Values.registry.persistence.enabled -}}
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
labels:
{{ include "docker-registry.labels" . | indent 4 }}
name: {{ include "docker-registry.fullname" . }}
spec:
accessModes:
{{- range .Values.registry.persistence.accessModes }}
- {{ . | quote }}
{{- end }}
resources:
requests:
storage: {{ .Values.registry.persistence.size }}
{{- if .Values.registry.persistence.storageClass }}
{{- if (eq "-" .Values.registry.persistence.storageClass) }}
storageClassName: ""
{{- else }}
storageClassName: {{ .Values.registry.persistence.storageClass | quote }}
{{- end }}
{{- end }}
{{- end -}}

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{{- if eq .Values.registry.external false -}}
apiVersion: v1
kind: Service
metadata:
name: {{ include "docker-registry.fullname" . }}
labels:
{{ include "docker-registry.labels" . | indent 4 }}
spec:
type: {{ .Values.registry.service.type }}
ports:
- port: {{ .Values.registry.service.port }}
targetPort: registry
protocol: TCP
name: registry
selector:
{{ include "docker-registry.matchLabels" . | indent 6 }}
{{- end -}}

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apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ include "docker-registry-ui.fullname" . }}
labels:
{{ include "docker-registry-ui.labels" . | indent 4 }}
spec:
replicas: {{ .Values.ui.replicaCount }}
selector:
matchLabels:
{{ include "docker-registry-ui.matchLabels" . | indent 6 }}
template:
metadata:
labels:
{{ include "docker-registry-ui.matchLabels" . | indent 8 }}
spec:
{{- with .Values.imagePullSecrets }}
imagePullSecrets:
{{- toYaml . | nindent 8 }}
{{- end }}
containers:
- name: registry-ui
image: "{{ .Values.ui.image.registry }}/{{ .Values.ui.image.repository }}:{{ .Values.ui.image.tag }}"
imagePullPolicy: {{ .Values.ui.image.pullPolicy }}
env:
- name: REGISTRY_TITLE
value: {{ .Values.ui.title| quote }}
- name: DELETE_IMAGES
value: {{ .Values.ui.delete_images| quote }}
- name: {{ include "docker-registry-ui.url-name" . }}
value: {{ include "docker-registry-ui.url-value" . | quote }}
- name: PULL_URL
value: {{ include "docker-registry-ui.pull" . | quote }}
ports:
- name: http
containerPort: 80
protocol: TCP
{{ include "docker-registry-ui.probes" . | indent 10 }}
resources:
{{- toYaml .Values.ui.resources | nindent 12 }}
{{- with .Values.ui.nodeSelector }}
nodeSelector:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.ui.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.ui.tolerations }}
tolerations:
{{- toYaml . | nindent 8 }}
{{- end }}

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{{- if .Values.ui.ingress.enabled -}}
{{- $fullName := include "docker-registry-ui.fullname" . -}}
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: {{ $fullName }}
labels:
{{ include "docker-registry-ui.labels" . | indent 4 }}
{{- with .Values.ui.ingress.annotations }}
annotations:
{{- toYaml . | nindent 4 }}
{{- end }}
spec:
{{- if .Values.ui.ingress.tls }}
tls:
{{- range .Values.ui.ingress.tls }}
- hosts:
{{- range .hosts }}
- {{ . | quote }}
{{- end }}
secretName: {{ .secretName }}
{{- end }}
{{- end }}
rules:
{{- range .Values.ui.ingress.hosts }}
- host: {{ .host | quote }}
http:
paths:
- path: /
backend:
serviceName: {{ $fullName }}
servicePort: http
{{- end }}
{{- end }}

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apiVersion: v1
kind: Service
metadata:
name: {{ include "docker-registry-ui.fullname" . }}
labels:
{{ include "docker-registry-ui.labels" . | indent 4 }}
spec:
type: {{ .Values.ui.service.type }}
ports:
- port: {{ .Values.ui.service.port }}
targetPort: http
protocol: TCP
name: http
selector:
{{ include "docker-registry-ui.matchLabels" . | indent 6 }}

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# Default values for docker-registry-ui.
# This is a YAML-formatted file.
# Declare variables to be passed into your templates.
ui:
# title of the registry
title: "Docker registry UI"
# allow delete of images
delete_images: false
# UI behave as a proxy of the registry
proxy: true
replicaCount: 1
image:
registry: docker.io
repository: joxit/docker-registry-ui
tag: static
pullPolicy: Always
probe:
liveness: true
readiness: true
resources: {}
# If you do want to specify resources, uncomment the following
# lines, adjust them as necessary, and remove the curly braces after 'resources:'.
# limits:
# cpu: 100m
# memory: 128Mi
# requests:
# cpu: 100m
# memory: 128Mi
nodeSelector: {}
tolerations: []
affinity: {}
fullnameOverride: ""
service:
type: ClusterIP
port: 80
ingress:
enabled: false
annotations: {}
# kubernetes.io/ingress.class: nginx
# kubernetes.io/tls-acme: "true"
hosts:
- host: docker-registry-ui.local
tls: []
# - secretName: chart-example-tls
# hosts:
# - chart-example.local
registry:
external: false
# URL of the registry (requiered. Note: this wont work as localhost is inside the container. Only used if the registry is external)
url: http://localhost:5000
replicaCount: 1
# Image definition for the registry (Only used if the registry is not external)
image:
registry: docker.io
repository: registry
tag: 2.6.2
pullPolicy: Always
probe:
liveness: true
readiness: true
resources: {}
# If you do want to specify resources, uncomment the following
# lines, adjust them as necessary, and remove the curly braces after 'resources:'.
# limits:
# cpu: 100m
# memory: 128Mi
# requests:
# cpu: 100m
# memory: 128Mi
nodeSelector: {}
tolerations: []
affinity: {}
fullnameOverride: ""
persistence:
## If true, use a Persistent Volume Claim, If false, use emptyDir
##
enabled: false
## Persistent Volume Storage Class
## If defined, storageClassName: <storageClass>
## If set to "-", storageClassName: "", which disables dynamic provisioning
## If undefined (the default) or set to null, no storageClassName spec is
## set, choosing the default provisioner. (gp2 on AWS, standard on
## GKE, AWS & OpenStack)
##
# storageClass: "-"
## Persistent Volume Claim annotations
##
annotations:
## Persistent Volume Access Mode
##
accessModes:
# This have to be ReadWriteMany if replicaCount>1
- ReadWriteOnce
## Persistent Volume size
##
size: 1Gi
##
service:
type: ClusterIP
port: 5000
ingress:
enabled: false
annotations: {}
# kubernetes.io/ingress.class: nginx
# kubernetes.io/tls-acme: "true"
hosts:
- host: docker-registry.local
tls: []
# - secretName: chart-example-tls
# hosts:
# - chart-example.local
imagePullSecrets: []
nameOverride: ""

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# Kubernetes installation of Docker Registry UI
## Full installation
Install a registry and docker-registry-ui as frontend of this registry to kubernetes.
```sh
kubectl apply -f *.yaml
```
Please note that you'll need a PV provisionner to be able to store the uploaded images.
## Dynamic installation
Edit the image tag in the ui-deployement.yaml file and set it to `latest`, then :
```sh
kubectl apply -f ui*.yaml
```
You'll get a docker-registry-ui pod installed inside kubernetes and you'll be able to configure it to act as a frontend to your existing registry(ies).

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apiVersion: v1
kind: ConfigMap
metadata:
name: docker-registry
labels:
app: registry
release: docker-registry-ui
app/version: "1.2.1"
data:
config.yml: |-
version: 0.1
log:
fields:
service: registry
storage:
delete:
enabled: true
cache:
blobdescriptor: inmemory
filesystem:
rootdirectory: /var/lib/registry
http:
addr: :5000
headers:
X-Content-Type-Options: [nosniff]
Access-Control-Allow-Origin: ['*']
Access-Control-Allow-Methods: ['HEAD', 'GET', 'OPTIONS', 'DELETE']
Access-Control-Allow-Headers: ['Authorization']
Access-Control-Max-Age: [1728000]
Access-Control-Allow-Credentials: [true]
Access-Control-Expose-Headers: ['Docker-Content-Digest']

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apiVersion: apps/v1
kind: Deployment
metadata:
name: docker-registry
labels:
app: registry
release: docker-registry-ui
app/version: "1.2.1"
spec:
replicas: 1
selector:
matchLabels:
app: registry
release: docker-registry-ui
template:
metadata:
labels:
app: registry
release: docker-registry-ui
spec:
volumes:
- name: config
configMap:
defaultMode: 420
name: docker-registry
- name: data
persistentVolumeClaim:
claimName: docker-registry
containers:
- name: registry
image: "docker.io/registry:2.6.2"
imagePullPolicy: Always
ports:
- name: registry
containerPort: 5000
protocol: TCP
volumeMounts:
- mountPath: "/var/lib/registry"
name: "data"
- mountPath: "/etc/docker/registry"
name: "config"
livenessProbe:
httpGet:
path: /v2/
port: registry
readinessProbe:
httpGet:
path: /v2/
port: registry
resources:
{}

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apiVersion: v1
kind: PersistentVolumeClaim
metadata:
labels:
app: registry
release: docker-registry-ui
app/version: "1.2.1"
name: docker-registry
spec:
accessModes:
- "ReadWriteOnce"
resources:
requests:
storage: 1Gi

18
examples/kubernetes/registry-service.yaml Normal file
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@ -0,0 +1,18 @@
apiVersion: v1
kind: Service
metadata:
name: docker-registry
labels:
app: registry
release: docker-registry-ui
app/version: "1.2.1"
spec:
type: ClusterIP
ports:
- port: 5000
targetPort: registry
protocol: TCP
name: registry
selector:
app: registry
release: docker-registry-ui

48
examples/kubernetes/ui-deployment.yaml Normal file
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apiVersion: apps/v1
kind: Deployment
metadata:
name: docker-registry-ui
labels:
app: registry-ui
release: docker-registry-ui
app/version: "1.2.1"
spec:
replicas: 1
selector:
matchLabels:
app: registry-ui
release: docker-registry-ui
template:
metadata:
labels:
app: registry-ui
release: docker-registry-ui
spec:
containers:
- name: registry-ui
image: "docker.io/joxit/docker-registry-ui:static"
imagePullPolicy: Always
env:
- name: REGISTRY_TITLE
value: "Docker registry UI"
- name: DELETE_IMAGES
value: "false"
- name: REGISTRY_URL
value: "http://docker-registry.default:5000"
- name: PULL_URL
value: "docker-registry-ui.default:80"
ports:
- name: http
containerPort: 80
protocol: TCP
livenessProbe:
httpGet:
path: /
port: http
readinessProbe:
httpGet:
path: /
port: http
resources:
{}

19
examples/kubernetes/ui-service.yaml Normal file
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apiVersion: v1
kind: Service
metadata:
name: docker-registry-ui
labels:
app: registry-ui
release: docker-registry-ui
app/version: "1.2.1"
spec:
type: LoadBalancer
ports:
- port: 80
targetPort: http
protocol: TCP
name: http
selector:
app: registry-ui
release: docker-registry-ui