Kong是一款基于OpenResty（Nginx + Lua模塊）撰寫的高可用、易擴展的，由Mashape公司開源的API Gateway專案，Kong是基于NGINX和Apache Cassandra或PostgreSQL構建的
在k8s集群內部創建kong網關
kong-ingress.yaml
apiVersion: v1
kind: Namespace
metadata:
name: kong
---
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
name: kongclusterplugins.configuration.konghq.com
spec:
additionalPrinterColumns:
- JSONPath: .plugin
description: Name of the plugin
name: Plugin-Type
type: string
- JSONPath: .metadata.creationTimestamp
description: Age
name: Age
type: date
- JSONPath: .disabled
description: Indicates if the plugin is disabled
name: Disabled
priority: 1
type: boolean
- JSONPath: .config
description: Configuration of the plugin
name: Config
priority: 1
type: string
group: configuration.konghq.com
names:
kind: KongClusterPlugin
plural: kongclusterplugins
shortNames:
- kcp
scope: Cluster
subresources:
status: {}
validation:
openAPIV3Schema:
properties:
config:
type: object
configFrom:
properties:
secretKeyRef:
properties:
key:
type: string
name:
type: string
namespace:
type: string
required:
- name
- namespace
- key
type: object
type: object
disabled:
type: boolean
plugin:
type: string
protocols:
items:
enum:
- http
- https
- grpc
- grpcs
- tcp
- tls
type: string
type: array
run_on:
enum:
- first
- second
- all
type: string
required:
- plugin
version: v1
---
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
name: kongconsumers.configuration.konghq.com
spec:
additionalPrinterColumns:
- JSONPath: .username
description: Username of a Kong Consumer
name: Username
type: string
- JSONPath: .metadata.creationTimestamp
description: Age
name: Age
type: date
group: configuration.konghq.com
names:
kind: KongConsumer
plural: kongconsumers
shortNames:
- kc
scope: Namespaced
subresources:
status: {}
validation:
openAPIV3Schema:
properties:
credentials:
items:
type: string
type: array
custom_id:
type: string
username:
type: string
version: v1
---
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
name: kongingresses.configuration.konghq.com
spec:
group: configuration.konghq.com
names:
kind: KongIngress
plural: kongingresses
shortNames:
- ki
scope: Namespaced
subresources:
status: {}
validation:
openAPIV3Schema:
properties:
proxy:
properties:
connect_timeout:
minimum: 0
type: integer
path:
pattern: ^/.*$
type: string
protocol:
enum:
- http
- https
- grpc
- grpcs
- tcp
- tls
type: string
read_timeout:
minimum: 0
type: integer
retries:
minimum: 0
type: integer
write_timeout:
minimum: 0
type: integer
type: object
route:
properties:
headers:
additionalProperties:
items:
type: string
type: array
type: object
https_redirect_status_code:
type: integer
methods:
items:
type: string
type: array
path_handling:
enum:
- v0
- v1
type: string
preserve_host:
type: boolean
protocols:
items:
enum:
- http
- https
- grpc
- grpcs
- tcp
- tls
type: string
type: array
regex_priority:
type: integer
request_buffering:
type: boolean
response_buffering:
type: boolean
snis:
items:
type: string
type: array
strip_path:
type: boolean
upstream:
properties:
algorithm:
enum:
- round-robin
- consistent-hashing
- least-connections
type: string
hash_fallback:
type: string
hash_fallback_header:
type: string
hash_on:
type: string
hash_on_cookie:
type: string
hash_on_cookie_path:
type: string
hash_on_header:
type: string
healthchecks:
properties:
active:
properties:
concurrency:
minimum: 1
type: integer
healthy:
properties:
http_statuses:
items:
type: integer
type: array
interval:
minimum: 0
type: integer
successes:
minimum: 0
type: integer
type: object
http_path:
pattern: ^/.*$
type: string
timeout:
minimum: 0
type: integer
unhealthy:
properties:
http_failures:
minimum: 0
type: integer
http_statuses:
items:
type: integer
type: array
interval:
minimum: 0
type: integer
tcp_failures:
minimum: 0
type: integer
timeout:
minimum: 0
type: integer
type: object
type: object
passive:
properties:
healthy:
properties:
http_statuses:
items:
type: integer
type: array
interval:
minimum: 0
type: integer
successes:
minimum: 0
type: integer
type: object
unhealthy:
properties:
http_failures:
minimum: 0
type: integer
http_statuses:
items:
type: integer
type: array
interval:
minimum: 0
type: integer
tcp_failures:
minimum: 0
type: integer
timeout:
minimum: 0
type: integer
type: object
type: object
threshold:
type: integer
type: object
host_header:
type: string
slots:
minimum: 10
type: integer
type: object
version: v1
---
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
name: kongplugins.configuration.konghq.com
spec:
additionalPrinterColumns:
- JSONPath: .plugin
description: Name of the plugin
name: Plugin-Type
type: string
- JSONPath: .metadata.creationTimestamp
description: Age
name: Age
type: date
- JSONPath: .disabled
description: Indicates if the plugin is disabled
name: Disabled
priority: 1
type: boolean
- JSONPath: .config
description: Configuration of the plugin
name: Config
priority: 1
type: string
group: configuration.konghq.com
names:
kind: KongPlugin
plural: kongplugins
shortNames:
- kp
scope: Namespaced
subresources:
status: {}
validation:
openAPIV3Schema:
properties:
config:
type: object
configFrom:
properties:
secretKeyRef:
properties:
key:
type: string
name:
type: string
required:
- name
- key
type: object
type: object
disabled:
type: boolean
plugin:
type: string
protocols:
items:
enum:
- http
- https
- grpc
- grpcs
- tcp
- tls
type: string
type: array
run_on:
enum:
- first
- second
- all
type: string
required:
- plugin
version: v1
---
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
name: tcpingresses.configuration.konghq.com
spec:
additionalPrinterColumns:
- JSONPath: .status.loadBalancer.ingress[*].ip
description: Address of the load balancer
name: Address
type: string
- JSONPath: .metadata.creationTimestamp
description: Age
name: Age
type: date
group: configuration.konghq.com
names:
kind: TCPIngress
plural: tcpingresses
scope: Namespaced
subresources:
status: {}
validation:
openAPIV3Schema:
properties:
apiVersion:
type: string
kind:
type: string
metadata:
type: object
spec:
properties:
rules:
items:
properties:
backend:
properties:
serviceName:
type: string
servicePort:
format: int32
type: integer
type: object
host:
type: string
port:
format: int32
type: integer
type: object
type: array
tls:
items:
properties:
hosts:
items:
type: string
type: array
secretName:
type: string
type: object
type: array
type: object
status:
type: object
version: v1beta1
status:
acceptedNames:
kind: ""
plural: ""
conditions: []
storedVersions: []
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: kong-serviceaccount
namespace: kong
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRole
metadata:
name: kong-ingress-clusterrole
rules:
- apiGroups:
- ""
resources:
- endpoints
- nodes
- pods
- secrets
verbs:
- list
- watch
- apiGroups:
- ""
resources:
- nodes
verbs:
- get
- apiGroups:
- ""
resources:
- services
verbs:
- get
- list
- watch
- apiGroups:
- networking.k8s.io
- extensions
- networking.internal.knative.dev
resources:
- ingresses
verbs:
- get
- list
- watch
- apiGroups:
- ""
resources:
- events
verbs:
- create
- patch
- apiGroups:
- networking.k8s.io
- extensions
- networking.internal.knative.dev
resources:
- ingresses/status
verbs:
- update
- apiGroups:
- configuration.konghq.com
resources:
- tcpingresses/status
verbs:
- update
- apiGroups:
- configuration.konghq.com
resources:
- kongplugins
- kongclusterplugins
- kongcredentials
- kongconsumers
- kongingresses
- tcpingresses
verbs:
- get
- list
- watch
- apiGroups:
- ""
resources:
- configmaps
verbs:
- create
- get
- update
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
name: kong-ingress-clusterrole-nisa-binding
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: kong-ingress-clusterrole
subjects:
- kind: ServiceAccount
name: kong-serviceaccount
namespace: kong
---
apiVersion: v1
kind: Service
metadata:
annotations:
service.beta.kubernetes.io/aws-load-balancer-backend-protocol: tcp
service.beta.kubernetes.io/aws-load-balancer-type: nlb
name: kong-proxy
namespace: kong
spec:
type: NodePort
ports:
- name: proxy
port: 80
protocol: TCP
targetPort: 8000
nodePort: 80
- name: proxy-ssl
port: 443
protocol: TCP
targetPort: 8443
nodePort: 443
selector:
app: ingress-kong
---
apiVersion: v1
kind: Service
metadata:
name: kong-admin
namespace: kong
labels:
k8s-app: kong
spec:
ports:
- name: admin
port: 8001
protocol: TCP
targetPort: 8001
- name: admin-ssl
port: 8444
protocol: TCP
targetPort: 8444
selector:
app: ingress-kong
---
apiVersion: v1
kind: Service
metadata:
name: kong-validation-webhook
namespace: kong
spec:
ports:
- name: webhook
port: 443
protocol: TCP
targetPort: 8080
selector:
app: ingress-kong
---
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: ingress-kong
name: ingress-kong
namespace: kong
spec:
replicas: 1
selector:
matchLabels:
app: ingress-kong
template:
metadata:
annotations:
kuma.io/gateway: enabled
prometheus.io/port: "8100"
prometheus.io/scrape: "true"
traffic.sidecar.istio.io/includeInboundPorts: ""
labels:
app: ingress-kong
spec:
tolerations:
- effect: NoSchedule
key: node-role.kubernetes.io/master
containers:
- env:
- name: KONG_DATABASE
value: postgres
- name: KONG_PG_HOST
value: postgres
- name: KONG_PG_PASSWORD
value: kong
- name: KONG_PROXY_LISTEN
value: 0.0.0.0:8000, 0.0.0.0:8443 ssl http2
- name: KONG_PORT_MAPS
value: 80:8000, 443:8443
- name: KONG_ADMIN_LISTEN
value: 0.0.0.0:8001, 0.0.0.0:8444 ssl
- name: KONG_STATUS_LISTEN
value: 0.0.0.0:8100
- name: KONG_NGINX_WORKER_PROCESSES
value: "2"
- name: KONG_ADMIN_ACCESS_LOG
value: /dev/stdout
- name: KONG_ADMIN_ERROR_LOG
value: /dev/stderr
- name: KONG_PROXY_ERROR_LOG
value: /dev/stderr
image: kong:2.3
lifecycle:
preStop:
exec:
command:
- /bin/sh
- -c
- kong quit
livenessProbe:
failureThreshold: 3
httpGet:
path: /status
port: 8100
scheme: HTTP
initialDelaySeconds: 5
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 1
name: proxy
ports:
- containerPort: 8000
name: proxy
protocol: TCP
- containerPort: 8443
name: proxy-ssl
protocol: TCP
- containerPort: 8100
name: metrics
protocol: TCP
readinessProbe:
failureThreshold: 3
httpGet:
path: /status
port: 8100
scheme: HTTP
initialDelaySeconds: 5
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 1
- env:
- name: CONTROLLER_KONG_ADMIN_URL
value: http://127.0.0.1:8001
- name: CONTROLLER_KONG_ADMIN_TLS_SKIP_VERIFY
value: "false"
- name: CONTROLLER_PUBLISH_SERVICE
value: kong/kong-proxy
- name: POD_NAME
valueFrom:
fieldRef:
apiVersion: v1
fieldPath: metadata.name
- name: POD_NAMESPACE
valueFrom:
fieldRef:
apiVersion: v1
fieldPath: metadata.namespace
image: kong/kubernetes-ingress-controller:1.2
imagePullPolicy: IfNotPresent
livenessProbe:
failureThreshold: 3
httpGet:
path: /healthz
port: 10254
scheme: HTTP
initialDelaySeconds: 5
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 1
name: ingress-controller
ports:
- containerPort: 8080
name: webhook
protocol: TCP
readinessProbe:
failureThreshold: 3
httpGet:
path: /healthz
port: 10254
scheme: HTTP
initialDelaySeconds: 5
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 1
initContainers:
- command:
- /bin/sh
- -c
- while true; do kong migrations list; if [[ 0 -eq $? ]]; then exit 0; fi; sleep 2; done;
env:
- name: KONG_PG_HOST
value: postgres
- name: KONG_PG_PASSWORD
value: kong
image: kong:2.3
name: wait-for-migrations
serviceAccountName: kong-serviceaccount
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: postgres
namespace: kong
spec:
replicas: 1
selector:
matchLabels:
app: postgres
serviceName: postgres
template:
metadata:
labels:
app: postgres
spec:
containers:
- env:
- name: POSTGRES_USER
value: kong
- name: POSTGRES_PASSWORD
value: kong
- name: POSTGRES_DB
value: kong
- name: PGDATA
value: /var/lib/postgresql/data/pgdata
image: postgres:11.5
name: postgres
ports:
- containerPort: 5432
volumeMounts:
- mountPath: /var/lib/postgresql/data
name: kong-pg
subPath: pgdata
terminationGracePeriodSeconds: 60
volumeClaimTemplates:
- metadata:
name: kong-pg
spec:
accessModes:
- ReadWriteOnce
storageClassName: "nfs-storage"
resources:
requests:
storage: 3Gi
---
apiVersion: v1
kind: Service
metadata:
name: postgres
namespace: kong
spec:
ports:
- name: pgql
port: 5432
protocol: TCP
targetPort: 5432
selector:
app: postgres
---
apiVersion: batch/v1
kind: Job
metadata:
name: kong-migrations
namespace: kong
spec:
template:
metadata:
name: kong-migrations
spec:
containers:
- command:
- /bin/sh
- -c
- kong migrations bootstrap
env:
- name: KONG_PG_PASSWORD
value: kong
- name: KONG_PG_HOST
value: postgres
- name: KONG_PG_PORT
value: "5432"
image: kong:2.3
name: kong-migrations
initContainers:
- command:
- /bin/sh
- -c
- until nc -zv $KONG_PG_HOST $KONG_PG_PORT -w1; do echo 'waiting for db'; sleep 1; done
env:
- name: KONG_PG_HOST
value: postgres
- name: KONG_PG_PORT
value: "5432"
image: busybox
name: wait-for-postgres
restartPolicy: OnFailure
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: konga
namespace: kong
spec:
replicas: 1
selector:
matchLabels:
app: konga
template:
metadata:
labels:
app: konga
spec:
containers:
- name: konga
image: pantsel/konga
env:
- name: DB_ADAPTER
value: postgres
- name: DB_HOST
value: postgres
- name: DB_PORT
value: '5432'
- name: DB_PASSWORD
value: kong
- name: DB_USER
value: kong
- name: DB_DATABASE
value: konga
ports:
- containerPort: 1337
name: web
initContainers:
- command:
- /bin/sh
- -c
- while true; do kong migrations list; if [[ 0 -eq $? ]]; then exit 0; fi; sleep 2; done;
env:
- name: KONG_PG_HOST
value: postgres
- name: KONG_PG_PASSWORD
value: kong
image: kong:2.3
name: wait-for-migrations
---
apiVersion: v1
kind: Service
metadata:
name: konga
namespace: kong
spec:
ports:
- port: 1337
protocol: TCP
targetPort: 1337
selector:
app: konga
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: web-ingress
namespace: kong
annotations:
kubernetes.io/ingress.class: "kong"
spec:
rules:
- host: konga.test.lan
http:
paths:
- path: /
backend:
serviceName: konga
servicePort: 1337
先把上面這個檔案下載下來，了解以下里面主要的架構
kong網關幾個注意的架構
-
ingress-kong 以kong網關建立的 Kubernetes 入口控制器
-
konga 網關管理界面
-
postgres 網關資料存盤
-
job 初始化結構表資料
一般在新的集群內創建kong網關的時候是需要先進行postgres資料庫的創建，資料庫正常運行之后，再進行job初始化資料庫表資料，最后再創建ingress-kong和konga，現在我進行將這些資源整合，變成了一個ingress-kong.yaml，我們直接通過一條命令就可以部署起來，
$ kubectl apply -f ingress-kong.yaml
等待3分鐘，查看運行創建情況
$ kubectl get po -n kong
NAME READY STATUS RESTARTS AGE
ingress-kong-f7bd9f9f-bb6rg 2/2 Running 9 126d
kong-migrations-w2v4b 0/1 Completed 0 168d
konga-85fd66dcff-jw8gn 1/1 Running 0 97d
postgres-0 1/1 Running 1 168d
配置host
ingress-kong節點ip konga.test.lan
訪問konga管理平臺http://konga.nq.lan
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標籤：其他
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