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DoTheEvo
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@ -504,6 +504,228 @@ Including pushing information from windows powershell.
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---
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---
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<details>
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<summary><h1>Loki</h1></summary>
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- New container - `loki` added to the compose file. It stores logs and makes
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them available for grafana to visualize.
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- New container - `promtail` added to the compose file. Agent that pushes
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logs content to loki.
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- New file - `loki-docker-config.yml` bind mounted in the loki container.<br>
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The file is [all default](https://github.com/grafana/loki/tree/main/cmd/loki),
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except for alertmanager url.<br>
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- New file - `promtail-config.yml` mounted in to promtail container<br>
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This files defines source of logs. Any such source much be accessible
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by the promtail container.
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<details>
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<summary>docker-compose.yml</summary>
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```yml
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services:
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# MONITORING SYSTEM AND THE METRICS DATABASE
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prometheus:
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image: prom/prometheus:v2.42.0
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container_name: prometheus
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hostname: prometheus
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restart: unless-stopped
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user: root
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depends_on:
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- cadvisor
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command:
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- '--config.file=/etc/prometheus/prometheus.yml'
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- '--storage.tsdb.path=/prometheus'
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- '--web.console.libraries=/etc/prometheus/console_libraries'
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- '--web.console.templates=/etc/prometheus/consoles'
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- '--storage.tsdb.retention.time=500h'
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- '--web.enable-lifecycle'
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volumes:
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- ./prometheus_data:/prometheus
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- ./prometheus.yml:/etc/prometheus/prometheus.yml
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- ./alert.rules:/etc/prometheus/rules/alert.rules
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expose:
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- 9090:9090
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labels:
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org.label-schema.group: "monitoring"
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# WEB BASED UI VISUALISATION OF METRICS
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grafana:
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image: grafana/grafana:9.3.6
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container_name: grafana
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hostname: grafana
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restart: unless-stopped
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env_file: .env
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user: root
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volumes:
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- ./grafana_data:/var/lib/grafana
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expose:
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- 3000
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labels:
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org.label-schema.group: "monitoring"
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# HOST LINUX MACHINE METRICS EXPORTER
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nodeexporter:
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image: prom/node-exporter:v1.5.0
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container_name: nodeexporter
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hostname: nodeexporter
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restart: unless-stopped
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command:
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- '--path.procfs=/host/proc'
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- '--path.rootfs=/rootfs'
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- '--path.sysfs=/host/sys'
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- '--collector.filesystem.mount-points-exclude=^/(sys|proc|dev|host|etc)($$|/)'
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volumes:
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- /proc:/host/proc:ro
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- /sys:/host/sys:ro
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- /:/rootfs:ro
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expose:
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- 9100
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labels:
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org.label-schema.group: "monitoring"
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# DOCKER CONTAINERS METRICS EXPORTER
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cadvisor:
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image: gcr.io/cadvisor/cadvisor:v0.47.1
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container_name: cadvisor
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hostname: cadvisor
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restart: unless-stopped
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privileged: true
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devices:
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- /dev/kmsg:/dev/kmsg
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volumes:
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- /:/rootfs:ro
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- /var/run:/var/run:ro
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- /sys:/sys:ro
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- /var/lib/docker:/var/lib/docker:ro
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- /cgroup:/cgroup:ro #doesn't work on MacOS only for Linux
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expose:
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- 3000
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labels:
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org.label-schema.group: "monitoring"
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# ALERT MANAGMENT BY PROMETHEUS
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alertmanager:
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image: prom/alertmanager:v0.25.0
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container_name: alertmanager
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hostname: alertmanager
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restart: unless-stopped
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volumes:
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- ./alertmanager.yml:/etc/alertmanager.yml
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- ./alertmanager_data:/alertmanager
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command:
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- '--config.file=/etc/alertmanager.yml'
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- '--storage.path=/alertmanager'
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expose:
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- 9093
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labels:
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org.label-schema.group: "monitoring"
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# LOG MANAGMENT WITH LOKI
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loki:
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image: grafana/loki:2.7.3
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container_name: loki
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hostname: loki
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restart: unless-stopped
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volumes:
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- ./loki_data:/loki
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- ./loki-docker-config.yml:/etc/loki-docker-config.yml
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command:
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- '-config.file=/etc/loki-docker-config.yml'
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ports:
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- 3100:3100
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labels:
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org.label-schema.group: "monitoring"
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# LOG AGENT PUSHING LOGS TO LOKI
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promtail:
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image: grafana/promtail:2.7.3
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container_name: promtail
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hostname: promtail
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restart: unless-stopped
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user: root
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volumes:
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- /var/log:/var/log:ro
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- /var/lib/docker/containers:/var/lib/docker/containers:ro
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- ./promtail-config.yml:/etc/promtail-config.yml
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command:
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- '-config.file=/etc/promtail-config.yml'
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labels:
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org.label-schema.group: "monitoring"
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networks:
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default:
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name: $DOCKER_MY_NETWORK
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external: true
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```
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</details>
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<details>
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<summary>loki-docker-config.yml</summary>
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```yml
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auth_enabled: false
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server:
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http_listen_port: 3100
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common:
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path_prefix: /loki
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storage:
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filesystem:
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chunks_directory: /loki/chunks
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rules_directory: /loki/rules
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replication_factor: 1
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ring:
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kvstore:
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store: inmemory
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schema_config:
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configs:
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- from: 2020-10-24
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store: boltdb-shipper
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object_store: filesystem
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schema: v11
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index:
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prefix: index_
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period: 24h
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ruler:
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alertmanager_url: http://alertmanager:9093
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analytics:
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reporting_enabled: false
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```
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</details>
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<details>
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<summary>promtail-config.yml</summary>
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```yml
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server:
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http_listen_port: 9080
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grpc_listen_port: 0
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positions:
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filename: /tmp/positions.yaml
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clients:
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- url: http://loki:3100/loki/api/v1/push
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scrape_configs:
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- job_name: my-container-logs
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static_configs:
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- targets: # tells promtail to look for the logs on the current machine/host
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- localhost
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labels: # labels with which all the following logs should be labelled
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job: minecraft-container # label-1
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host: docker-host-archlinux # label-2
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__path__: /var/lib/docker/containers/60a617a7c1376ad42*/60a617a7c1376ad42*.log
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```
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</details>
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</details>
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# Update
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Manual image update:
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