Commit 041ed433 authored by Gao Hongtao's avatar Gao Hongtao Committed by 吴晟
Browse files

Add documents of kubernetes (#1810) 

* Update submodule skywalking-ui

* Add kubernetes and istio setup documents

* Remove kubernetes scripts
parent b6241b2a

docs/en/setup/backend/backend-k8s.md

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# Deploy backend in kubernetes



Follow instructions in the [deploying SkyWalking backend to Kubernetes cluster](https://github.com/apache/incubator-skywalking-kubernetes#deploy-skywalking-backend-to-kubernetes-cluster)

 to deploy oap and ui to a kubernetes cluster.

 
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docs/en/setup/istio/README.md

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# Work with Istio



Instructions for transport Istio's metrics to skywalking oap server.



## Prerequisites



Istio should be installed in kubernetes cluster. Follow [Istio quick start](https://istio.io/docs/setup/kubernetes/quick-start/)

to finish it.



## Deploy Skywalking backend



Follow the [deploying backend in kubernetes](../backend/backend-k8s.md) to install oap server in kubernetes cluster.



## Setup Istio to send metrics to oap



Follow instructions in the [setup Istio to send metric to oap](https://github.com/apache/incubator-skywalking-kubernetes#setup-istio-to-send-metric-to-oap)

 to setup Istio with oap.

 
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kubernetes/elasticsearch/01-storageclass.yml

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# Licensed to the Apache Software Foundation (ASF) under one

# or more contributor license agreements.  See the NOTICE file

# distributed with this work for additional information

# regarding copyright ownership.  The ASF licenses this file

# to you under the Apache License, Version 2.0 (the

# "License"); you may not use this file except in compliance

# with the License.  You may obtain a copy of the License at

#

#     http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.



kind: StorageClass

apiVersion: storage.k8s.io/v1

metadata:

  name: ssd

  namespace: skywalking

provisioner: kubernetes.io/gce-pd

parameters:

  type: pd-ssd

  zone: us-west1-a
 
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kubernetes/elasticsearch/02-service.yml

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# Licensed to the Apache Software Foundation (ASF) under one

# or more contributor license agreements.  See the NOTICE file

# distributed with this work for additional information

# regarding copyright ownership.  The ASF licenses this file

# to you under the Apache License, Version 2.0 (the

# "License"); you may not use this file except in compliance

# with the License.  You may obtain a copy of the License at

#

#     http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.



apiVersion: v1

kind: Service

metadata:

  name: elasticsearch

  namespace: skywalking

  labels:

    service: elasticsearch

spec:

  clusterIP: None

  ports:

  - port: 9200

    name: serving

  - port: 9300

    name: node-to-node

  selector:

    service: elasticsearch
 
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kubernetes/elasticsearch/03-statefulset.yml

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# Licensed to the Apache Software Foundation (ASF) under one

# or more contributor license agreements.  See the NOTICE file

# distributed with this work for additional information

# regarding copyright ownership.  The ASF licenses this file

# to you under the Apache License, Version 2.0 (the

# "License"); you may not use this file except in compliance

# with the License.  You may obtain a copy of the License at

#

#     http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.



apiVersion: apps/v1

kind: StatefulSet

metadata:

  name: elasticsearch

  namespace: skywalking

  labels:

    service: elasticsearch

spec:

  serviceName: elasticsearch

  # NOTE: This is number of nodes that we want to run

  # you may update this

  replicas: 3

  selector:

    matchLabels:

      service: elasticsearch

  template:

    metadata:

      labels:

        service: elasticsearch

    spec:

      terminationGracePeriodSeconds: 300

      initContainers:

      # NOTE:

      # This is to fix the permission on the volume

      # By default elasticsearch container is not run as

      # non root user.

      # https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html#_notes_for_production_use_and_defaults

      - name: fix-the-volume-permission

        image: busybox

        command:

        - sh

        - -c

        - chown -R 1000:1000 /usr/share/elasticsearch/data

        securityContext:

          privileged: true

        volumeMounts:

        - name: data

          mountPath: /usr/share/elasticsearch/data

      # NOTE:

      # To increase the default vm.max_map_count to 262144

      # https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html#docker-cli-run-prod-mode

      - name: increase-the-vm-max-map-count

        image: busybox

        command:

        - sysctl

        - -w

        - vm.max_map_count=262144

        securityContext:

          privileged: true

      # To increase the ulimit

      # https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html#_notes_for_production_use_and_defaults

      - name: increase-the-ulimit

        image: busybox

        command:

        - sh

        - -c

        - ulimit -n 65536

        securityContext:

          privileged: true

      containers:

      - name: elasticsearch

        image: docker.elastic.co/elasticsearch/elasticsearch-oss:6.3.2

        ports:

        - containerPort: 9200

          name: http

        - containerPort: 9300

          name: tcp

        # NOTE: you can increase this resources

        resources:

          requests:

            memory: 8Gi

          limits:

            memory: 16Gi

        env:

          # NOTE: the cluster name; update this

          - name: cluster.name

            value: elasticsearch-cluster

          - name: node.name

            valueFrom:

              fieldRef:

                fieldPath: metadata.name

          # NOTE: This will tell the elasticsearch node where to connect to other nodes to form a cluster

          - name: discovery.zen.ping.unicast.hosts

            value: "elasticsearch-0.elasticsearch.skywalking.svc.cluster.local,elasticsearch-1.elasticsearch.skywalking.svc.cluster.local,elasticsearch-2.elasticsearch.skywalking.svc.cluster.local"

          # NOTE: You can increase the heap size

          - name: ES_JAVA_OPTS

            value: -Xms4g -Xmx4g

        volumeMounts:

        - name: data

          mountPath: /usr/share/elasticsearch/data

  volumeClaimTemplates:

  - metadata:

      name: data

    spec:

      accessModes:

        - ReadWriteOnce

      storageClassName: ssd

      # NOTE: You can increase the storage size

      resources:

        requests:

          storage: 500Gi