Why
The official docker containers should have a PID 1 issue there, this prject was made for try to solve this problem.
Bootstrap
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#!/bin/sh
JAVA_OPTS_EXT="-Djava.awt.headless=true -Djava.net.preferIPv4Stack=true -Dfile.encoding=UTF-8"
case ${@} in
-a | a | -adapter | adapter)
exec java ${JAVA_OPTS} ${JAVA_OPTS_EXT} com.alibaba.otter.canal.adapter.launcher.CanalAdapterApplication
;;
-d | d | -deployer | deployer)
exec java ${JAVA_OPTS} ${JAVA_OPTS_EXT} com.alibaba.otter.canal.deployer.CanalLauncher
;;
-v | v | -version | version)
echo "canal version: 1.1.4 d53bfd7 on java-${JAVA_VERSION}"
;;
*)
echo "usage: [[-][a[dapter]]|[d[eployer]]|[v[ersion]]]"
echo ""
echo " adapter: launch the canal adapter, the workdir must be located in /alibaba/canal-adapter"
echo " deployer: launch the canal deployer, the workdir must be located in /alibaba/canal-deployer"
echo " version: display this build version"
echo ""
echo "shown this usage manual default"
;;
esac
|
Example usage in k8s
it was commented on here, copied here for record.
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|
apiVersion: v1
kind: ConfigMap
metadata:
name: k8s-canal
data:
canal.properties: |
canal.zkServers = zookeeper:2181
canal.withoutNetty = false
canal.serverMode = tcp
canal.destinations = sys_info
canal.auto.scan = false
canal.conf.dir = .
canal.instance.binlog.format = ROW,STATEMENT,MIXED
canal.instance.binlog.image = FULL,MINIMAL,NOBLOB
canal.instance.tsdb.enable = true
canal.instance.tsdb.dir = ${canal.conf.dir}/tsdb
canal.instance.tsdb.url = jdbc:h2:${canal.instance.tsdb.dir}/h2;CACHE_SIZE=1000;MODE=MYSQL;
canal.instance.tsdb.dbUsername = canal
canal.instance.tsdb.dbPassword = canal
canal.instance.tsdb.spring.xml = classpath:spring/tsdb/h2-tsdb.xml
canal.instance.global.mode = spring
canal.instance.global.lazy = false
canal.instance.global.spring.xml = classpath:spring/default-instance.xml
sys_info-instance.properties: |
canal.instance.gtidon = false
canal.instance.master.address = __RDS__:3306
canal.instance.master.journal.name =
canal.instance.master.position =
canal.instance.dbUsername = reader
canal.instance.dbPassword = "readER!"
canal.instance.defaultDatabaseName = sys_info
canal.instance.filter.regex = sys_info\\.jdp_tb_item
application.yml: |
server:
port: 8081
logging:
level:
org.springframework: WARN
com.alibaba.otter.canal.client.adapter.rdb: WARN
spring:
jackson:
date-format: yyyy-MM-dd HH:mm:ss
time-zone: GMT+8
default-property-inclusion: non_null
canal.conf:
zookeeperHosts: zookeeper:2181
batchSize: 500
syncBatchSize: 1000
retries: 2
mode: tcp
canalAdapters:
- instance: sys_info
groups:
- groupId: g1
outerAdapters:
- name: rdb
key: pg_52_50
properties:
jdbc.url: jdbc:postgresql://__PG__:5432/analytics
jdbc.username: writer
jdbc.password: "writER!"
threads: 10
commitSize: 3000
sys_info-jdp_tb_item.yml: |
destination : sys_info
outerAdapterKey : sys_info
concurrent : true
dbMapping:
database : sys_info
table : jdp_tb_item
targetTable : sys_info.jdp_tb_item
targetColumns:
num_iid : num_iid
nick : nick
approve_status : approve_status
has_showcase : has_showcase
created : created
modified : modified
cid : cid
has_discount : has_discount
jdp_hashcode : jdp_hashcode
jdp_response : jdp_response
jdp_delete : jdp_delete
jdp_created : jdp_created
jdp_modified : jdp_modified
targetPk:
num_iid: num_iid
---
apiVersion: v1
kind: Service
metadata:
name: zookeeper
labels:
app: zk
spec:
ports:
- port: 2181
name: client
clusterIP: None
selector:
app: zk
---
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
labels:
app: ak
name: zookeeper
spec:
replicas: 1
selector:
matchLabels:
app: zk
template:
metadata:
name: zk
labels:
app: zk
spec:
volumes:
- name: localtime
hostPath:
path: /usr/share/zoneinfo/Asia/Shanghai
containers:
- name: zookeeper
image: zookeeper:3.3
volumeMounts:
- name: localtime
mountPath: /etc/localtime
readOnly: true
---
apiVersion: v1
kind: Service
metadata:
name: deployer
labels:
app: canal-deployer
spec:
ports:
- port: 11111
name: deployer
- port: 11112
name: metrics
clusterIP: None
selector:
app: canal-deployer
---
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
labels:
app: canal-deployer
name: deployer
spec:
minReadySeconds: 10
selector:
matchLabels:
app: canal-deployer
template:
metadata:
name: canal-deployer
labels:
app: canal-deployer
spec:
volumes:
- name: localtime
hostPath:
path: /usr/share/zoneinfo/Asia/Shanghai
- name: conf
configMap:
name: k8s-canal
- name: tsdb
hostPath:
path: /opt/canal-h2-tsdb
containers:
- name: deployer
image: thenorthmemory/canal:latest-alpine
volumeMounts:
- mountPath: /etc/localtime
name: localtime
readOnly: true
- mountPath: /alibaba/canal-deployer/conf/canal.properties
name: conf
subPath: canal.properties
readOnly: true
- mountPath: /alibaba/canal-deployer/conf/sys_info/instance.properties
name: conf
subPath: sys_info-instance.properties
readOnly: true
- mountPath: /alibaba/canal-deployer/tsdb
name: tsdb
env:
- name: TZ
value: Asia/Shanghai
- name: JAVA_OPTS
value: "-XX:+UnlockExperimentalVMOptions -XX:+UseCGroupMemoryLimitForHeap -Xmn138m -Xms256m -Xmx256m"
args:
- deployer
ports:
- containerPort: 11111
protocol: TCP
- containerPort: 11112
protocol: TCP
workingDir: /alibaba/canal-deployer
---
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
labels:
app: canal-adapter
name: adapter
spec:
minReadySeconds: 10
selector:
matchLabels:
app: canal-adapter
template:
metadata:
name: canal-adapter
labels:
app: canal-adapter
spec:
volumes:
- name: localtime
hostPath:
path: /usr/share/zoneinfo/Asia/Shanghai
- name: conf
configMap:
name: k8s-canal
containers:
- name: adapter
image: thenorthmemory/canal:latest-alpine
volumeMounts:
- mountPath: /etc/localtime
name: localtime
readOnly: true
- mountPath: /alibaba/canal-adapter/conf/application.yml
name: conf
subPath: application.yml
readOnly: true
- mountPath: /alibaba/canal-adapter/conf/rdb/mytest_user.yml
name: conf
subPath: sys_info-jdp_tb_item.yml
readOnly: true
env:
- name: TZ
value: Asia/Shanghai
- name: JAVA_OPTS
value: "-XX:+UnlockExperimentalVMOptions -XX:+UseCGroupMemoryLimitForHeap -Xmn138m -Xms256m -Xmx256m"
args:
- adapter
ports:
- containerPort: 8081
protocol: TCP
workingDir: /alibaba/canal-adapter
|