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190ebcd684
ref https://linear.app/ghost/issue/ENG-1746/enable-ghost-to-push-metrics-to-a-pushgateway - We'd like to use prometheus to expose metrics from Ghost, but the "standard" approach of having prometheus scrape the `/metrics` endpoint adds some complexity and additional challenges on Pro. - A suggested simpler alternative is to use a pushgateway, to have Ghost _push_ metrics to prometheus, rather than have prometheus scrape the running instances. - This PR introduces this functionality behind a configuration. - It also includes a refactor to the current metrics-server implementation so all the related code for prometheus is colocated, and the configuration is a bit more organized. `@tryghost/metrics-server` has been renamed to `@tryghost/prometheus-metrics`, and it now includes the metrics server and prometheus-client code itself (including the pushgateway code) - To enable the prometheus client alone, `prometheus:enabled` must be true. This will _not_ enable the metrics server or the pushgateway — it will essentially collect the metrics, but not do anything with them. - To enable the metrics server, set `prometheus:metrics_server:enabled` to true. You can also configure the host and port that the metrics server should export the `/metrics` endpoint on in the `prometheus:metrics_server` block. - To enable the pushgateway, set `prometheus:pushgateway:enabled` to true. You can also configure the pushgateway's `url`, the `interval` it should push metrics in (in milliseconds) and the `jobName` in the `prometheus:pushgateway` block.
59 lines
1.7 KiB
YAML
59 lines
1.7 KiB
YAML
name: ghost
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services:
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mysql:
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image: mysql:8.0.35
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container_name: ghost-mysql
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# We'll need to look into how we can further fine tune the memory usage/performance here
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command: --innodb-buffer-pool-size=1G --innodb-log-buffer-size=500M --innodb-change-buffer-max-size=50 --innodb-flush-log-at-trx_commit=0 --innodb-flush-method=O_DIRECT
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ports:
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- "3306:3306"
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environment:
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MYSQL_ROOT_PASSWORD: root
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MYSQL_DATABASE: ghost
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restart: always
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volumes:
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# Turns out you can drop .sql or .sql.gz files in here, cool!
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- ./mysql-preload:/docker-entrypoint-initdb.d
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- mysql-data:/var/lib/mysql
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healthcheck:
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test: "mysql -uroot -proot ghost -e 'select 1'"
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interval: 1s
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retries: 120
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redis:
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image: redis:7.0
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container_name: ghost-redis
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ports:
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- "6379:6379"
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restart: always
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prometheus:
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profiles: [monitoring]
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image: prom/prometheus:v2.30.3
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container_name: ghost-prometheus
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ports:
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- "9090:9090"
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restart: always
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volumes:
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- ./prometheus/prometheus.yml:/etc/prometheus/prometheus.yml
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grafana:
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profiles: [monitoring]
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image: grafana/grafana:8.2.3
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container_name: ghost-grafana
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ports:
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- "3000:3000"
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restart: always
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environment:
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- GF_AUTH_ANONYMOUS_ENABLED=true
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volumes:
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- ./grafana/datasources:/etc/grafana/provisioning/datasources
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- ./grafana/dashboard.yml:/etc/grafana/provisioning/dashboards/main.yaml
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- ./grafana/dashboards:/var/lib/grafana/dashboards
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pushgateway:
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profiles: [monitoring]
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image: prom/pushgateway:v1.6.0
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container_name: ghost-pushgateway
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ports:
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- "9091:9091"
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volumes:
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mysql-data:
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