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Serverless Computing ne OpenWhisk, Chikamu 4

Serverless Computing ne OpenWhisk, Chikamu 4

Ichi chinyorwa chinopedzisa nhevedzano yezvinyorwa zvakashandurwa nezve OpenWhisk kubva kumunyori Priti Desai. Nhasi tichatarisa maitiro ekuisa OpenWhisk pamusoro peKubernetes nemirairo yakagadziriswa yekushanda neshanduro dzazvino dzekushandisa. Ichavharawo maitiro ekumhanyisa OpenWhisk mabasa uchishandisa Knative uye TektonCD paKubernetes uchishandisa iyo Nodejs runtime.

Kutumira OpenWhisk paKubernetes

Mukufamba kwemazuva mashoma, ndakaedza kuendesa OpenWhisk kuKubernetes kugadzira nzvimbo yekuyedza yakapusa uye inokurumidza. Uye sezvo ndiri mutsva kuKubernetes, ndinotenda kuti zuva nehafu rakashandiswa pakubudirira kutumirwa. IN izvi Iwo marekodhi ane mirairo yakajeka yekuendesa OpenWhisk paKubernetes. Heino iyo mirairo yekuendesa yakagadzirirwa Mac (Iniwo ndichaita zvese paLinux nekuti ini ndinoda Linux. β€” approx. muturikiri).

  1. Kuisa iyo package maneja asdf, mushure mezvo tinozvigadzirisa ~/.bash_profile kana kuti yakaenzana neiyi:

$ brew install asdf
$ [ -s "/usr/local/opt/asdf/asdf.sh" ] && . /usr/local/opt/asdf/asdf.sh
$ source ~/.bash_profile

[PaLinux danho iri haridiwe, kunyangwe brew iripo. - approx. muturikiri]

  1. Kuwedzera plugins minikube ΠΈ kubelet:

$ asdf plugin-add kubectl
$ asdf plugin-add minikube

[Zvekare, svetuka danho iri paLinux. - approx. muturikiri]

  1. Isa minikube uye kubelet:

$ asdf install kubectl 1.9.0
$ asdf global kubectl 1.9.0
$ asdf install minikube 0.25.2
$ asdf global minikube 0.25.2

[chaiwo mavhezheni akaiswa, asi ini ndakatarisa zvese pane zvichangoburwa shanduro dzeLinux; Ndinofungidzira kuti unogona kuisa zvakachengeteka zvazvino. - approx. muturikiri]

PaLinux, danho iri rinoitwa seizvi (zvese zvinoiswa ~/bin, izvo zvakanyorwa muPATH yangu, chinyorwa chemuturikiri):

$ curl -L0 minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 && chmod +x minikube && mv minikube ~/bin/
$ curl -L0 https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl && chmod +x kubectl && mv kubectl ~/bin/

  1. Gadzira minikube virtual muchina (VirtualBox inofanira kunge isati yaiswa):

$ minikube start --cpus 2 --memory 4096 --kubernetes-version=v1.9.0 --extra-config=apiserver.Authorization.Mode=RBAC

[Zvese zvinondiitira nechikwata minikube start , isina parameter uye ine default values. - approx. muturikiri] 

$ minikube start
  minikube v1.5.2 on Debian 8.11
  Automatically selected the 'virtualbox' driver
  Downloading VM boot image ...
    > minikube-v1.5.1.iso.sha256: 65 B / 65 B [--------------] 100.00% ? p/s 0s
    > minikube-v1.5.1.iso: 143.76 MiB / 143.76 MiB [-] 100.00% 5.63 MiB p/s 26s
  Creating virtualbox VM (CPUs=2, Memory=4096MB, Disk=20000MB) ...
  Preparing Kubernetes v1.16.2 on Docker '18.09.9' ...
  Downloading kubelet v1.16.2
  Downloading kubeadm v1.16.2
  Pulling images ...
  Launching Kubernetes ...  Waiting for: apiserver
  Done! kubectl is now configured to use "minikube"

  1. Kuchinja network muDocker kuita unzenza modhi:

$ minikube ssh -- sudo ip link set docker0 promisc on

  1. Gadzira nzvimbo yezita uye maka iyo yevashandi node:

$ kubectl create namespace openwhisk
$ kubectl label nodes --all openwhisk-role=invoker

  1. Isu tinowana zviri mukati me repository uye tinodarika mhando ye ingress mu mycluster.yaml faira:

$ git clone https://github.com/apache/incubator-openwhisk-deploy-kube.git
$ cd incubator-openwhisk-deploy-kube/
$ cat << "EOF" > mycluster.yaml
whisk:
    ingress:
        type: NodePort
            api_host_name: 192.168.99.100
            api_host_port: 31001
nginx:
    httpsNodePort: 31001
EOF

  1. Isa Helm uye uiise uchiishandisa:

$ brew install kubernetes-helm
$ helm init # init Helm Tiller, Π½Π΅ Π½ΡƒΠΆΠ½ΠΎ Π½Π° Helm v3+
$ kubectl get pods -n kube-system # verify that tiller-deploy is in the running state, Π½Π΅ Π½ΡƒΠΆΠ½ΠΎ Π½Π° helm v3+
$ kubectl create clusterrolebinding tiller-cluster-admin --clusterrole=cluster-admin --serviceaccount=kube-system:default
$ helm install ./openwhisk/helm/ --namespace=openwhisk -f mycluster.yaml

[PaLinux neshanduro dzichangoburwa (v3.0.1 yaivepo) ichave yakati siyanei. - approx. muturikiri] 

$ curl -L0 https://get.helm.sh/helm-v3.0.1-linux-amd64.tar.gz | tar -xzvf - linux-amd64/helm --strip-components=1; sudo mv helm /usr/local/bin
$ kubectl create clusterrolebinding tiller-cluster-admin --clusterrole=cluster-admin --serviceaccount=kube-system:default
$ helm install ./openwhisk/helm/ --namespace=openwhisk --generate-name -f mycluster.yaml

  1. Isu tinotarisa kuti zvese zvamuka (STATUS = Kumhanya kana Kupedzwa):

$ kubectl get pods -n openwhisk
NAME                                                              READY   STATUS      RESTARTS   AGE
openwhisk-1576070780-alarmprovider-6868dc694-plvpf                1/1     Running     1          1d5h
openwhisk-1576070780-apigateway-8d56f4979-825hf                   1/1     Running     1          1d5h
openwhisk-1576070780-cloudantprovider-544bb46596-9scph            1/1     Running     1          1d5h
openwhisk-1576070780-controller-0                                 1/1     Running     2          1d5h
openwhisk-1576070780-couchdb-7fd7f6c7cc-42tw6                     1/1     Running     1          1d5h
openwhisk-1576070780-gen-certs-z9nsb                              0/1     Completed   0          1d5h
openwhisk-1576070780-init-couchdb-r2vmt                           0/1     Completed   0          1d5h
openwhisk-1576070780-install-packages-27dtr                       0/1     Completed   0          1d4h
openwhisk-1576070780-invoker-0                                    1/1     Running     1          1d5h
openwhisk-1576070780-kafka-0                                      1/1     Running     1          1d5h
openwhisk-1576070780-kafkaprovider-f8b4cf4fc-7z4gt                1/1     Running     1          1d5h
openwhisk-1576070780-nginx-6dbdbf69bc-5x76n                       1/1     Running     1          1d5h
openwhisk-1576070780-redis-cfd8756f4-hkrt6                        1/1     Running     1          1d5h
openwhisk-1576070780-wskadmin                                     1/1     Running     1          1d5h
openwhisk-1576070780-zookeeper-0                                  1/1     Running     1          1d5h
wskopenwhisk-1576070780-invoker-00-1-prewarm-nodejs10             1/1     Running     0          61s
wskopenwhisk-1576070780-invoker-00-2-prewarm-nodejs10             1/1     Running     0          61s
wskopenwhisk-1576070780-invoker-00-3-whisksystem-invokerhealtht   1/1     Running     0          59s

  1. Kugadzirisa wsk kushanda:

$ wsk property set --apihost 192.168.99.100:31001
$ wsk property set --auth 23bc46b1-71f6-4ed5-8c54-816aa4f8c502:123zO3xZCLrMN6v2BKK1dXYFpXlPkccOFqm12CdAsMgRU4VrNZ9lyGVCGuMDGIwP

Tinotarisa:

$ wsk -i list
Entities in namespace: default
packages
actions
triggers
rules

Matambudziko nemhinduro dzawo

getsockopt: kubatana kwaramba

$ wsk -i list
error: Unable to obtain the list of entities for namespace 'default': Get http://192.168.99.100:31001/api/v1/namespaces/_/actions?limit=0&skip=0: dial tcp 192.168.99.100:31001: getsockopt: connection refused

Kutarisa kuti midziyo iri munzvimbo yezita openwhisk muchimiro Running, nokuti dzimwe nguva inorovera nezvikanganiso CreateContainerConfigError.

Invoker ichiri kutanga - Init:1/2

Maitiro ekurodha akasiyana siyana ekumhanya nharaunda anogona kutora nguva yakareba. Kuti zvinhu zvikurumidze, unogona kutsanangura yakapfupikiswa rondedzero mufaira mycluster.yaml:

whisk:
  runtimes: "runtimes-minimal-travis.json"

Container ine zita -isa-mapeji- kubondera kuKukanganisa

Ingowedzera nguva dzekubuda kwehupenyu bvunzo.

Kuisa OpenWhisk pamusoro peKnative

Priti Desai akaita kuisirwa pamusoro pesumbu muIBM gore, pamwe neyakajairwa minikube, achishandisa Knative Build uye BuildTemplates. Ini ndichaisawo pamusoro pe minukube, zvichienderana nekuti sei zvakatsanangurwa mublog redu kare - uchishandisa shanduro dzezvino software. Sezvo Knative Build and BuildTemplates dzadzikiswa zviri pamutemo, ini ndichashandisa yakakurudzirwa kutsiva nenzira yeTekton Pipelines. Chinyorwa chasara chakanyorwa mushure mekuverenga zvinyorwa zveTekton Pipelines, asi zvichibva pamazano aPriti. Kuti ushande, iwe unozoda kuwana kune imwe Docker Registry - Ini, semunyori wekutanga, ndichashandisa DockerHub.

$ curl -L0 https://github.com/solo-io/gloo/releases/download/v1.2.10/glooctl-linux-amd64; chmod +x glooctl-linux-amd64; mv glooctl-linux-amd64 ~/bin
$ glooctl install knative
$ kubectl get pods -n knative-serving
NAME                              READY   STATUS    RESTARTS   AGE
activator-77fc555665-rvrst        1/1     Running   0          2m23s
autoscaler-5c98b7c9b6-x8hh4       1/1     Running   0          2m21s
autoscaler-hpa-5cfd4f6845-w87kq   1/1     Running   0          2m22s
controller-7fd74c8f67-tprm8       1/1     Running   0          2m19s
webhook-74847bb77c-txr2g          1/1     Running   0          2m17s
$ kubectl get pods -n gloo-system
NAME                                      READY   STATUS    RESTARTS   AGE
discovery-859d7fbc9c-8xhvh                1/1     Running   0          51s
gloo-545886d9c6-85mwt                     1/1     Running   0          51s
ingress-67d4996d75-lkkmw                  1/1     Running   0          50s
knative-external-proxy-767dfd656c-wwv2z   1/1     Running   0          50s
knative-internal-proxy-6fdddcc6b5-7vqd8   1/1     Running   0          51s

Serverless Computing ne OpenWhisk, Chikamu 4
Kuvaka uye kumhanya OpenWhisk pamusoro Knative

  1. Kuwana zviri mukati iyi repository:

$ git clone https://github.com/tektoncd/catalog/
$ cd catalog/openwhisk

  1. Isu tinoseta iyo data yekuwana iyo Registry seyakasiyana nharaunda uye tichengetedze seKubernetes chakavanzika:

$ export DOCKER_USERNAME=<your docker hub username>
$ export DOCKER_PASSWORD=<your docker hub password>
$ sed -e 's/${DOCKER_USERNAME}/'"$DOCKER_USERNAME"'/' -e 's/${DOCKER_PASSWORD}/'"$DOCKER_PASSWORD"'/' docker-secret.yaml.tmpl > docker-secret.yaml
$ kubectl apply -f docker-secret.yaml

Tinotarisa:

$ kubectl get secret
NAME                    TYPE                                  DATA      AGE
dockerhub-user-pass     kubernetes.io/basic-auth              2         21s

  1. Gadzira account yekuvaka nharaunda:

$ kubectl apply -f service-account.yaml

Tinotarisa:

$ kubectl get serviceaccount/openwhisk-runtime-builder
NAME                        SECRETS   AGE
openwhisk-runtime-builder   2         31m

  1. Gadzira basa rekuvaka mufananidzo weOpenWhisk

$ kubectl apply -f openwhisk.yaml
task.tekton.dev/openwhisk created

  1. Isu tinomhanyisa basa rekuvaka mufananidzo (tichishandisa NodeJS semuenzaniso):

Gadzira faira re taskrun.yaml rine zviri mukati:

# Git Pipeline Resource for OpenWhisk NodeJS Runtime
apiVersion: tekton.dev/v1alpha1
kind: PipelineResource
metadata:
    name: openwhisk-nodejs-runtime-git
spec:
    type: git
    params:
        - name: revision
          value: master
        - name: url
          value: https://github.com/apache/openwhisk-runtime-nodejs.git
---

# Image Pipeline Resource for OpenWhisk NodeJS Sample Application
apiVersion: tekton.dev/v1alpha1
kind: PipelineResource
metadata:
    name: openwhisk-nodejs-helloworld-image
spec:
    type: image
    params:
        - name: url
          value: docker.io/${DOCKER_USERNAME}/openwhisk-nodejs-helloworld
---

# Task Run to build NodeJS image with the action source
apiVersion: tekton.dev/v1alpha1
kind: TaskRun
metadata:
    name: openwhisk-nodejs-helloworld
spec:
    serviceAccountName: openwhisk-runtime-builder
    taskRef:
        name: openwhisk
    inputs:
        resources:
            - name: runtime-git
              resourceRef:
                name: openwhisk-nodejs-runtime-git
        params:
            - name: DOCKERFILE
              value: "./runtime-git/core/nodejs10Action/knative/Dockerfile"
            - name: OW_ACTION_NAME
              value: "nodejs-helloworld"
            - name: OW_ACTION_CODE
              value: "function main() {return {payload: 'Hello World!'};}"
            - name: OW_PROJECT_URL
              value: ""
    outputs:
        resources:
            - name: runtime-image
              resourceRef:
                name: openwhisk-nodejs-helloworld-image
---

Isu tinoshandisa data iripo yefaira iyi:

$ sed 's/${DOCKER_USERNAME}/'"$DOCKER_USERNAME"'/' -i taskrun.yaml

Isu tinoshandisa:

$ kubectl apply -f taskrun.yaml
pipelineresource.tekton.dev/openwhisk-nodejs-runtime-git created
pipelineresource.tekton.dev/openwhisk-nodejs-helloworld-image created
taskrun.tekton.dev/openwhisk-nodejs-helloworld created

Kuongorora basa kunosanganisira kuwana zita repodhi uye kuona chimiro chayo. Iwe unogona zvakare kuona irogi rekuuraya redanho rega rega, semuenzaniso:

$ kubectl get taskrun
NAME                          SUCCEEDED   REASON      STARTTIME   COMPLETIONTIME
openwhisk-nodejs-helloworld   True        Succeeded   5m15s       44s
$ kubectl get pod openwhisk-nodejs-helloworld-pod-4640d3
NAME                                     READY   STATUS      RESTARTS   AGE
openwhisk-nodejs-helloworld-pod-4640d3   0/6     Completed   0          5m20s
$ kubectl logs openwhisk-nodejs-helloworld-pod-4640d3 -c step-git-source-openwhisk-nodejs-runtime-git-r8vhr
{"level":"info","ts":1576532931.5880227,"logger":"fallback-logger","caller":"logging/config.go:69","msg":"Fetch GitHub commit ID from kodata failed: open /var/run/ko/refs/heads/master: no such file or directory"}
{"level":"info","ts":1576532936.538926,"logger":"fallback-logger","caller":"git/git.go:81","msg":"Successfully cloned https://github.com/apache/openwhisk-runtime-nodejs.git @ master in path /workspace/runtime-git"}
{"level":"warn","ts":1576532936.5395331,"logger":"fallback-logger","caller":"git/git.go:128","msg":"Unexpected error: creating symlink: symlink /tekton/home/.ssh /root/.ssh: file exists"}
{"level":"info","ts":1576532936.8202565,"logger":"fallback-logger","caller":"git/git.go:109","msg":"Successfully initialized and updated submodules in path /workspace/runtime-git"}

Mushure mekuurayiwa, isu tichava nemufananidzo muRegistry iyo inogona kuiswa uchishandisa iyo kn utility, yakagadzirirwa kushanda neKnative masevhisi, semuenzaniso:

kn service create nodejs-helloworld --image docker.io/${DOCKER_USERNAME}/openwhisk-nodejs-helloworld
Service 'nodejs-helloworld' successfully created in namespace 'default'.
Waiting for service 'nodejs-helloworld' to become ready ... OK

Service URL:
http://nodejs-helloworld.default.example.com

Kana ukashandisa Gloo, unogona kutarisa kushanda kwayo seizvi:

$ curl -H "Host: nodejs-helloworld.default.example.com" -X POST $(glooctl proxy url --name knative-external-proxy)
{"OK":true}
$ curl -H "Host: nodejs-helloworld.default.example.com" -X POST $(glooctl proxy url --name knative-external-proxy)
{"payload":"Hello World!"}

Zvimwe zvinyorwa munhevedzano

Serverless Computing ne OpenWhisk, Chikamu 1
Serverless Computing ne OpenWhisk, Chikamu 2
Serverless Computing ne OpenWhisk, Chikamu 3
Serverless Computing ne OpenWhisk, Chikamu 4

Source: www.habr.com

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