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Posted to notifications@apisix.apache.org by GitBox <gi...@apache.org> on 2021/05/24 02:47:30 UTC
[GitHub] [apisix-ingress-controller] lingsamuel commented on a change in pull request #479: docs: ingress apisix the hard way
lingsamuel commented on a change in pull request #479:
URL: https://github.com/apache/apisix-ingress-controller/pull/479#discussion_r637654627
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File path: docs/en/latest/practices/step-by-step.md
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+# APISIX Step by Step
+
+In this tutorial, we will install APISIX in Kubernetes from native yaml.
+
+## Prerequisites
+
+If you don't have a Kubernetes cluster to use, we recommend you to use [KiND](https://kind.sigs.k8s.io/docs/user/quick-start/) to create a local Kubernetes cluster.
+
+```bash
+kubectl create ns apisix
+```
+
+In this tutorial, all our operations will be performed at namespace `apisix`.
+
+## ETCD Installation
+
+Here, we will deploy a none authentication 1 member etcd server inside the Kubernetes cluster.
+
+In this case, we assume you have a storage provisioner. If you are using KiND, a local path provisioner will be created automatically. If you don't have a storage provisioner or don't want to use persistence volume, you could use an `emptyDir` as volume.
+
+```yaml
+# etcd-headless.yaml
+apiVersion: v1
+kind: Service
+metadata:
+ name: etcd-headless
+ labels:
+ app.kubernetes.io/name: etcd
+ annotations:
+ service.alpha.kubernetes.io/tolerate-unready-endpoints: "true"
+spec:
+ type: ClusterIP
+ clusterIP: None
+ ports:
+ - name: "client"
+ port: 2379
+ targetPort: client
+ - name: "peer"
+ port: 2380
+ targetPort: peer
+ selector:
+ app.kubernetes.io/name: etcd
+
+---
+# etcd.yaml
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+ name: etcd
+ labels:
+ app.kubernetes.io/name: etcd
+spec:
+ selector:
+ matchLabels:
+ app.kubernetes.io/name: etcd
+ serviceName: etcd-headless
+ podManagementPolicy: Parallel
+ replicas: 1
+ updateStrategy:
+ type: RollingUpdate
+ template:
+ metadata:
+ labels:
+ app.kubernetes.io/name: etcd
+ spec:
+ securityContext:
+ fsGroup: 1001
+ runAsUser: 1001
+ containers:
+ - name: etcd
+ image: docker.io/bitnami/etcd:3.4.14-debian-10-r0
+ imagePullPolicy: "IfNotPresent"
+ # command:
+ # - /scripts/setup.sh
+ env:
+ - name: BITNAMI_DEBUG
+ value: "false"
+ - name: MY_POD_IP
+ valueFrom:
+ fieldRef:
+ fieldPath: status.podIP
+ - name: MY_POD_NAME
+ valueFrom:
+ fieldRef:
+ fieldPath: metadata.name
+ - name: ETCDCTL_API
+ value: "3"
+ - name: ETCD_NAME
+ value: "$(MY_POD_NAME)"
+ - name: ETCD_DATA_DIR
+ value: /etcd/data
+ - name: ETCD_ADVERTISE_CLIENT_URLS
+ value: "http://$(MY_POD_NAME).etcd-headless.apisix.svc.cluster.local:2379"
+ - name: ETCD_LISTEN_CLIENT_URLS
+ value: "http://0.0.0.0:2379"
+ - name: ETCD_INITIAL_ADVERTISE_PEER_URLS
+ value: "http://$(MY_POD_NAME).etcd-headless.apisix.svc.cluster.local:2380"
+ - name: ETCD_LISTEN_PEER_URLS
+ value: "http://0.0.0.0:2380"
+ - name: ALLOW_NONE_AUTHENTICATION
+ value: "yes"
+ ports:
+ - name: client
+ containerPort: 2379
+ - name: peer
+ containerPort: 2380
+ volumeMounts:
+ - name: data
+ mountPath: /etcd
+ volumeClaimTemplates:
+ - metadata:
+ name: data
+ spec:
+ accessModes:
+ - "ReadWriteOnce"
+ resources:
+ requests:
+ storage: "8Gi"
+```
+
+Apply these two yaml files to Kubernetes, wait few seconds, etcd installation should be successful. We could run a health check to ensure that.
+
+```bash
+$ kubectl -n apisix exec -it etcd-0 -- etcdctl endpoint health
+127.0.0.1:2379 is healthy: successfully committed proposal: took = 1.741883ms
+```
+
+Please notice that this etcd installation is quite simple and lack of many necessary production features, it should only be used for learning case. If you want to deploy a production-ready etcd, please refer [bitnami/etcd](https://bitnami.com/stack/etcd/helm).
+
+## APISIX Installation
+
+Create a config file for our APISIX. Notice that in the `apisix.allow_admin` config, we set `0.0.0.0/0` here just for test.
+
+```yaml
+apisix:
+ node_listen: 9080 # APISIX listening port
+ enable_heartbeat: true
+ enable_admin: true
+ enable_admin_cors: true
+ enable_debug: false
+ enable_dev_mode: false # Sets nginx worker_processes to 1 if set to true
+ enable_reuseport: true # Enable nginx SO_REUSEPORT switch if set to true.
+ enable_ipv6: true
+ config_center: etcd # etcd: use etcd to store the config value
+
+ allow_admin: # http://nginx.org/en/docs/http/ngx_http_access_module.html#allow
+ - 0.0.0.0/0
+ port_admin: 9180
+
+ # Default token when use API to call for Admin API.
+ # *NOTE*: Highly recommended to modify this value to protect APISIX's Admin API.
+ # Disabling this configuration item means that the Admin API does not
+ # require any authentication.
+ admin_key:
+ # admin: can everything for configuration data
+ - name: "admin"
+ key: edd1c9f034335f136f87ad84b625c8f1
+ role: admin
+ # viewer: only can view configuration data
+ - name: "viewer"
+ key: 4054f7cf07e344346cd3f287985e76a2
+ role: viewer
+ # dns_resolver:
+ # - 127.0.0.1
+ dns_resolver_valid: 30
+ resolver_timeout: 5
+
+nginx_config: # config for render the template to genarate nginx.conf
+ error_log: "/dev/stderr"
+ error_log_level: "warn" # warn,error
+ worker_rlimit_nofile: 20480 # the number of files a worker process can open, should be larger than worker_connections
+ event:
+ worker_connections: 10620
+ http:
+ access_log: "/dev/stdout"
+ keepalive_timeout: 60s # timeout during which a keep-alive client connection will stay open on the server side.
+ client_header_timeout: 60s # timeout for reading client request header, then 408 (Request Time-out) error is returned to the client
+ client_body_timeout: 60s # timeout for reading client request body, then 408 (Request Time-out) error is returned to the client
+ send_timeout: 10s # timeout for transmitting a response to the client.then the connection is closed
+ underscores_in_headers: "on" # default enables the use of underscores in client request header fields
+ real_ip_header: "X-Real-IP" # http://nginx.org/en/docs/http/ngx_http_realip_module.html#real_ip_header
+ real_ip_from: # http://nginx.org/en/docs/http/ngx_http_realip_module.html#set_real_ip_from
+ - 127.0.0.1
+ - 'unix:'
+
+etcd:
+ host:
+ - "http://etcd-headless.apisix.svc.cluster.local:2379"
+ prefix: "/apisix" # apisix configurations prefix
+ timeout: 30 # seconds
+plugins: # plugin list
+ - api-breaker
+ - authz-keycloak
+ - basic-auth
+ - batch-requests
+ - consumer-restriction
+ - cors
+ - echo
+ - fault-injection
+ - grpc-transcode
+ - hmac-auth
+ - http-logger
+ - ip-restriction
+ - jwt-auth
+ - kafka-logger
+ - key-auth
+ - limit-conn
+ - limit-count
+ - limit-req
+ - node-status
+ - openid-connect
+ - prometheus
+ - proxy-cache
+ - proxy-mirror
+ - proxy-rewrite
+ - redirect
+ - referer-restriction
+ - request-id
+ - request-validation
+ - response-rewrite
+ - serverless-post-function
+ - serverless-pre-function
+ - sls-logger
+ - syslog
+ - tcp-logger
+ - udp-logger
+ - uri-blocker
+ - wolf-rbac
+ - zipkin
+ - traffic-split
+stream_plugins:
+ - mqtt-proxy
+```
+
+Please make sure `etcd.host` matches the headless service we created at first. In our case, it's `http://etcd-headless.apisix.svc.cluster.local:2379`.
+
+In this config, we defined an access key with the `admin` name under the `apisix.admin_key` section. This key is our API key, will be used to control APISIX later.
+
+Save this as `config.yaml`, then run `kubectl -n apisix create cm apisix-conf --from-file ./config.yaml` to create configmap. Later we will mount this configmap into APISIX deployment.
+
+```yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ name: apisix
+ labels:
+ app.kubernetes.io/name: apisix
+spec:
+ replicas: 1
+ selector:
+ matchLabels:
+ app.kubernetes.io/name: apisix
+ template:
+ metadata:
+ labels:
+ app.kubernetes.io/name: apisix
+ spec:
+ containers:
+ - name: apisix
+ image: "apache/apisix:2.5-alpine"
+ imagePullPolicy: IfNotPresent
+ ports:
+ - name: http
+ containerPort: 9080
+ protocol: TCP
+ - name: tls
+ containerPort: 9443
+ protocol: TCP
+ - name: admin
+ containerPort: 9180
+ protocol: TCP
+ readinessProbe:
+ failureThreshold: 6
+ initialDelaySeconds: 10
+ periodSeconds: 10
+ successThreshold: 1
+ tcpSocket:
+ port: 9080
+ timeoutSeconds: 1
+ lifecycle:
+ preStop:
+ exec:
+ command:
+ - /bin/sh
+ - -c
+ - "sleep 30"
+ volumeMounts:
+ - mountPath: /usr/local/apisix/conf/config.yaml
+ name: apisix-config
+ subPath: config.yaml
+ resources: {}
+ volumes:
+ - configMap:
+ name: apisix-conf
+ name: apisix-config
+```
+
+Now, APISIX should be ready to use. Use `kubectl get pods -n apisix -l app.kubernetes.io/name=apisix -o name` to list APISIX pod name. Here we assume the pod name is `apisix-7644966c4d-cl4k6`.
+
+Let's have a check:
+
+```bash
+kubectl -n apisix exec -it apisix-7644966c4d-cl4k6 -- curl http://127.0.0.1:9080
+```
+
+If you are using Linux or macOS, run the command below in bash:
+
+```bash
+kubectl -n apisix exec -it $(kubectl get pods -n apisix -l app.kubernetes.io/name=apisix -o name) -- curl http://127.0.0.1:9080
+```
+
+If APISIX works properly, it should output: `{"error_msg":"404 Route Not Found"}`. Because we haven't defined any route yet.
+
+## HTTPBIN service
Review comment:
The topic of that doc is not how to install and test httpbin
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