An example of an app that uses custom metrics with a swarm stack. The statser service is configured with the STATSD_xxx params, and sends custom metrics to the Replicated’s embedded statsd server.
# QA Application - Charlie - Swarm Scheduler
---
# kind: replicated
replicated_api_version: 2.8.0
name: "Compose Sample - AutoUpgrade"
version: "1.0.3"
release_notes: QA application meant for swarm scheduler installations.
###########################################################
# Host Requirements and Properties
###########################################################
host_requirements:
docker_version: "17.03.1-ce"
replicated_version: ">=2.9.0 <=2.11.0"
cpu_cores: 1
cpu_mhz: 1000
memory: 2GB
disk_space: 40GB
properties:
app_url: http://{{repl ConfigOption "hostname" }}
console_title: QA Application - Charlie UNstable Console
logo_url: http://www.clipartbest.com/cliparts/aTq/ogz/aTqogze8c.jpg
shell_alias: charliecli
###########################################################
# Swarm specific configurations
###########################################################
swarm:
minimum_node_count: 1
nodes:
- role: manager
labels:
A:
B: C
minimum_count: 1
host_requirements:
cpu_cores: 1
cpu_mhz: 1000
memory: 1GB
- role: worker
labels:
D:
E: F
minimum_count: 1
host_requirements:
cpu_cores: 1
cpu_mhz: 1000
memory: 1GB
secrets:
- name: secret_box
value: '{{repl ConfigOption "secret_box" }}'
labels:
A:
B: C
###########################################################
# Monitors and Custom Metrics
###########################################################
custom_metrics:
- target: stats.gauges.myapp100.disk.*.*.*
retention: "1s:10m,1m:4h,1h:30d"
aggregation_method: "average"
xfiles_factor: 0.3
- target: stats.gauges.myapp100.ping.*
retention: "1s:10m,1m:4h,1h:30d"
aggregation_method: "average"
xfiles_factor: 0.3
monitors:
custom:
- name: Disk Free (bytes) time 1 hour
targets:
- stats.gauges.myapp100.disk.*.free
from: "-1hours"
display:
label_unit: B
label_scale: metric
label_count: 2
fill_color: rgba(100, 0, 50, 0.5)
stroke_color: "#ff1060"
- name: Disk Free (%) time - default
target: scale(divideSeries(stats.gauges.myapp100.disk.*.free,stats.gauges.myapp100.disk.*.total),100)
display:
label_unit: "%"
label_scale: none
label_count: 3
label_min: 0
label_max: 100
label_range_override: true
- name: Ping RTT time 30 minutes
targets:
- stats.gauges.myapp100.ping.*
- movingAverage(stats.gauges.myapp100.ping.*,60)
- movingAverage(stats.gauges.myapp100.ping.*,600)
from: "-30minutes"
display:
label_unit: ms
label_scale: none
###########################################################
# Admin Commands
###########################################################
admin_commands:
- alias: aliasenv
command: [env]
run_type: exec
service: voting-app
- alias: redis-sadd
command: [redis-cli, sadd]
run_type: exec
service: redis
###########################################################
# Config Settings
###########################################################
config:
- name: qaconfigs
title: QA Test Configurations
description: These are only meant to test configuration options.
items:
- name: secret_box
title: Secret
type: password
help_text: What is typed in here will be a Docker secret in all app containers.
- name: hostname
title: Hostname
description: Ensure this domain name is routable on your network.
items:
- name: hostname
title: Hostname
value: '{{repl ConsoleSetting "tls.hostname"}}'
type: text
test_proc:
display_name: Check DNS
command: resolve_host
###########################################################
# Swarm specific section to allow airgap to build package
###########################################################
images:
- source: public
name: redis
tag: 3.2-alpine
- source: replicated
name: statser
tag: latest
- source: public
name: postgres
tag: 9.4
- source: replicated
name: example-voting-app-vote
tag: latest
- source: public
name: gaiadocker/example-voting-app-result
tag: latest
- source: public
name: gaiadocker/example-voting-app-worker
tag: latest
###########################################################
# Swarm services
###########################################################
---
# kind: scheduler-swarm
version: "3.1"
services:
redis:
image: redis:3.2-alpine
ports:
- "6379"
networks:
- voteapp
deploy:
mode: replicated
placement:
constraints: [node.role == manager]
replicas: 1
secrets:
- secret_box
statser:
image: registry.staging.replicated.com/charlie/statser:latest
networks:
- voteapp
deploy:
placement:
constraints: [node.role == worker]
environment:
REPLICATED_INTEGRATIONAPI: {{repl PremkitAPIAddress }}
REPLICATED_STATSD_ADDRESS: {{repl StatsdAddress }}
secrets:
- secret_box
db:
image: postgres:9.4
volumes:
- db-data:/var/lib/postgresql/data
networks:
- voteapp
deploy:
placement:
constraints: [node.role == manager]
voting-app:
image: registry.staging.replicated.com/charlie/example-voting-app-vote:latest
ports:
- 5000:80
networks:
- voteapp
depends_on:
- redis
deploy:
mode: replicated
replicas: 2
labels: [APP=VOTING]
placement:
constraints: [node.role == worker]
restart_policy:
condition: none
result-app:
image: gaiadocker/example-voting-app-result:latest
ports:
- 5001:80
networks:
- voteapp
depends_on:
- db
worker:
image: gaiadocker/example-voting-app-worker:latest
networks:
voteapp:
aliases:
- workers
depends_on:
- db
- redis
# service deployment
deploy:
mode: replicated
replicas: 2
labels: [APP=VOTING]
# service resource management
resources:
# Hard limit - Docker does not allow to allocate more
limits:
cpus: '0.25'
memory: 512M
# Soft limit - Docker makes best effort to return to it
reservations:
cpus: '0.25'
memory: 256M
# service restart policy
restart_policy:
condition: on-failure
delay: 5s
max_attempts: 3
window: 120s
# service update configuration
update_config:
parallelism: 1
delay: 10s
failure_action: continue
monitor: 60s
max_failure_ratio: 0.3
# placement constraint - in this case on 'worker' nodes only
placement:
constraints: [node.role == worker]
secrets:
secret_box:
external: true
networks:
voteapp:
volumes:
db-data: