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dag-daemon-task.yaml
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dag-daemon-task.yaml
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# This example demonstrates daemoned steps when used in in DAG templates. It is is equivalent to the
# daemon-step.yaml example, but written in DAG format. The IP address of the daemoned step can be
# referenced using the '{{tasks.taskname.ip}}' variable.
apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
generateName: dag-daemon-task-
spec:
entrypoint: daemon-example
templates:
- name: daemon-example
dag:
tasks:
- name: influx
template: influxdb
- name: init-database
template: influxdb-client
depends: "influx"
arguments:
parameters:
- name: cmd
value: curl -XPOST 'http://{{tasks.influx.ip}}:8086/query' --data-urlencode "q=CREATE DATABASE mydb"
- name: producer-1
template: influxdb-client
depends: "init-database"
arguments:
parameters:
- name: cmd
value: for i in $(seq 1 20); do curl -XPOST 'http://{{tasks.influx.ip}}:8086/write?db=mydb' -d "cpu,host=server01,region=uswest load=$i" ; sleep .5 ; done
- name: producer-2
template: influxdb-client
depends: "init-database"
arguments:
parameters:
- name: cmd
value: for i in $(seq 1 20); do curl -XPOST 'http://{{tasks.influx.ip}}:8086/write?db=mydb' -d "cpu,host=server02,region=uswest load=$((RANDOM % 100))" ; sleep .5 ; done
- name: producer-3
template: influxdb-client
depends: "init-database"
arguments:
parameters:
- name: cmd
value: curl -XPOST 'http://{{tasks.influx.ip}}:8086/write?db=mydb' -d 'cpu,host=server03,region=useast load=15.4'
- name: consumer
template: influxdb-client
depends: "producer-1 && producer-2 && producer-3"
arguments:
parameters:
- name: cmd
value: curl --silent -G http://{{tasks.influx.ip}}:8086/query?pretty=true --data-urlencode "db=mydb" --data-urlencode "q=SELECT * FROM cpu"
- name: influxdb
daemon: true
container:
image: influxdb:1.2
readinessProbe:
httpGet:
path: /ping
port: 8086
initialDelaySeconds: 5
timeoutSeconds: 1
- name: influxdb-client
inputs:
parameters:
- name: cmd
container:
image: appropriate/curl:latest
command: ["sh", "-c"]
args: ["{{inputs.parameters.cmd}}"]