Created
January 2, 2020 19:09
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using kustomize with vars
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#!/usr/bin/env bash | |
set -eu | |
set -o pipefail | |
# TMPDIR="$(mktemp -d)" | |
# pushd $TMPDIR 2>&1 >/dev/null | |
[ -d "base" ] || mkdir -p base/app dev/kustomizeconfig | |
cat <<_EOF_ >base/app/domain-cm.yml | |
--- | |
apiVersion: v1 | |
kind: ConfigMap | |
metadata: | |
labels: | |
app.kubernetes.io/name: domain-cm | |
app.kubernetes.io/part-of: argocd | |
name: domain-cm | |
namespace: monitoring | |
data: | |
domain: dev-eks.acme.com | |
_EOF_ | |
cat <<_EOF_ > base/app/kustomization.yml | |
--- | |
resources: | |
- deployment.yml | |
- ingress.yml | |
- domain-cm.yml | |
_EOF_ | |
cat <<_EOF_ > base/app/deployment.yml | |
--- | |
apiVersion: apps/v1 | |
kind: Deployment | |
metadata: | |
name: my-app | |
labels: | |
app: my-app | |
spec: | |
replicas: 1 | |
template: | |
spec: | |
containers: | |
- name: my-app | |
image: my-app | |
ports: | |
- containerPort: 808 | |
_EOF_ | |
cat <<'_EOF_' > base/app/ingress.yml | |
--- | |
apiVersion: extensions/v1beta1 | |
kind: Ingress | |
metadata: | |
name: my-app | |
spec: | |
tls: | |
- hosts: | |
- foo.bar.com | |
secretName: tls-secret5 | |
rules: | |
- host: foo.bar.com | |
http: | |
paths: | |
- backend: | |
serviceName: my-app-service | |
servicePort: 8080 | |
--- | |
kind: Service | |
apiVersion: v1 | |
metadata: | |
name: my-app-service | |
spec: | |
type: LoadBalancer | |
ports: | |
- port: 8080 | |
name: http | |
- port: 8181 | |
name: http-ssl | |
selector: | |
app: my-app | |
_EOF_ | |
cat <<_EOF_ > dev/kustomizeconfig/config.yml | |
--- | |
varReference: | |
- path: metadata/annotations | |
kind: Service | |
_EOF_ | |
cat <<'_EOF_' > dev/svc-dns.yml | |
--- | |
kind: Service | |
apiVersion: v1 | |
metadata: | |
name: my-app-service | |
annotations: | |
external-dns.alpha.kubernetes.io/hostname: my-app.$(APP_DOMAIN) | |
_EOF_ | |
cat <<'_EOF_' > dev/ingress-dns.yml | |
--- | |
apiVersion: extensions/v1beta1 | |
kind: Ingress | |
metadata: | |
name: my-app | |
spec: | |
tls: | |
- hosts: | |
- my-app.$(APP_DOMAIN) | |
secretName: tls-secret5 | |
rules: | |
- host: my-app.$(APP_DOMAIN) | |
http: | |
paths: | |
- backend: | |
serviceName: my-app-service | |
servicePort: 8080 | |
_EOF_ | |
cat <<_EOF_ > dev/kustomization.yml | |
--- | |
apiVersion: kustomize.config.k8s.io/v1beta1 | |
kind: Kustomization | |
commonLabels: | |
app: my-app | |
bases: | |
- ../base/app | |
vars: | |
- name: APP_DOMAIN | |
objref: | |
kind: ConfigMap | |
name: domain-cm | |
apiVersion: v1 | |
fieldref: | |
fieldpath: data.domain | |
configurations: | |
- kustomizeconfig/config.yml | |
patchesStrategicMerge: | |
- svc-dns.yml | |
- ingress-dns.yml | |
_EOF_ | |
kustomize build dev | |
# popd 2>&1 >/dev/null | |
# rm -fr "${TMPDIR}" | |
# tree | |
TREE_OUTPUT=' | |
. | |
├── base | |
│ └── app | |
│ ├── deployment.yml | |
│ ├── domain-cm.yml | |
│ ├── ingress.yml | |
│ └── kustomization.yml | |
├── dev | |
│ ├── ingress-dns.yml | |
│ ├── kustomization.yml | |
│ ├── kustomizeconfig | |
│ │ └── config.yml | |
│ └── svc-dns.yml | |
└── kustomize-vars-demo.sh' |
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