[英]How to pass environment variables in angular application with docker
我正在將我的 Angular 6 應用程序作為 Kubernetes pod/容器運行。 在這個 Angular 應用程序中,我嘗試訪問一個 JSON 配置對象,以加載我的環境變量。
我已經使用 volume 來讀取配置映射和卷掛載來創建一個配置 json 文件。
如果我在 yaml 文件中包含卷創建代碼,我的服務將引發503
錯誤。
在日志中看到時,Pod 處於運行模式。
我的部署 yaml 文件的代碼片段:
apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ include "client-onboard.fullname" . }}
labels:
app.kubernetes.io/name: {{ include "client-onboard.name" . }}
helm.sh/chart: {{ include "client-onboard.chart" . }}
app.kubernetes.io/instance: {{ .Release.Name }}
app.kubernetes.io/managed-by: {{ .Release.Service }}
spec:
replicas: {{ .Values.replicaCount }}
selector:
matchLabels:
app.kubernetes.io/name: {{ include "client-onboard.name" . }}
app.kubernetes.io/instance: {{ .Release.Name }}
template:
metadata:
labels:
app.kubernetes.io/name: {{ include "client-onboard.name" . }}
app.kubernetes.io/instance: {{ .Release.Name }}
spec:
containers:
- name: {{ .Chart.Name }}
image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
imagePullPolicy: {{ .Values.image.pullPolicy }}
volumeMounts:
- name: env-vars
mountPath: usr/share/nginx/html/config/env-vars.json
volumes:
- name: env-vars
configMap:
name: {{ .Chart.Name }}-configmap
ports:
- name: http
containerPort: 80
protocol: TCP
livenessProbe:
httpGet:
path: /
port: http
readinessProbe:
httpGet:
path: /
port: http
resources:
{{- toYaml .Values.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 }}
我為此使用了 nginx 服務器。
要創建文件,您需要使用子路徑。子路徑的值必須與 ConfigMap 的“鍵”匹配。 在下面的例子中,key 和 subPath 是 config.yaml。
apiVersion: v1
kind: ConfigMap
metadata:
name: sherlock-config
namespace: default
data:
config.yaml: |
namespaces:
- default
labels:
- "app"
- "owner"
---
apiVersion: v1
kind: Pod
metadata:
name: dapi-test-pod
spec:
containers:
- name: test-container
image: k8s.gcr.io/busybox
command: [ "/bin/sh", "-c", "ls /etc/config/" ]
volumeMounts:
- name: config-volume
mountPath: /etc/config/config.yaml
subPath: config.yaml
volumes:
- name: config-volume
configMap:
# Provide the name of the ConfigMap containing the files you want
# to add to the container
name: sherlock-config
restartPolicy: Never
kubectl 描述 cm Sherlock-config
Name: sherlock-config
Namespace: default
Labels: <none>
Annotations: kubectl.kubernetes.io/last-applied-configuration:
{"apiVersion":"v1","data":{"config.yaml":"namespaces:\n - default\nlabels:\n - \"app\"\n - \"owner\"\n"},"kind":"ConfigMap","metadata":...
Data
====
config.yaml: <------ This is the key
----
namespaces:
- default
labels:
- "app"
- "owner"
Events: <none>
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