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metheus configure remote access for docker daemon read the daemon logs troubleshooting the docker daemon manage resources docker contexts docker object labels prune unused docker objects logs and metrics configure logging drivers customize log driver output logging drivers amazon cloudwatch logs logging driver etw logging driver fluentd logging driver google cloud logging driver graylog extended format logging driver journald logging driver json file logging driver local file logging driver splunk logging driver syslog logging driver use a logging driver plugin use docker logs with remote logging drivers security rootless mode tips troubleshooting antivirus software and docker apparmor security profiles for docker content trust in docker automation with content trust delegations for content trust deploy notary server with compose manage keys for content trust play in a content trust sandbox docker security non events isolate containers with a user namespace protect the docker daemon socket seccomp security profiles for docker verify repository client with certificates swarm mode administer and maintain a swarm of docker engines deploy a stack to a swarm deploy services to a swarm getting started with swarm mode create a swarm add nodes to the swarm deploy a service to the swarm inspect a service on the swarm scale the service in the swarm delete the service running on the swarm apply rolling updates to a service drain a node on the swarm how swarm works how nodes work how services work manage swarm security with public key infrastructure pki swarm task states join nodes to a swarm lock your swarm to protect its encryption key manage nodes in a swarm manage sensitive data with docker secrets manage swarm service networks raft consensus in swarm mode run docker engine in swarm mode store configuration data using docker configs swarm mode key concepts use swarm mode routing mesh deprecated features docker engine plugins access authorization plugin docker log driver plugins docker network driver plugins docker plugin api docker volume plugins plugin config version 1 of plugin v2 use docker engine plugins release notes engine v29 engine v28 engine v27 engine v26 1 engine v26 0 engine v25 0 engine v24 0 engine v23 0 engine v20 10 engine v19 03 engine v18 09 engine v18 06 engine v18 05 engine v18 04 engine v18 03 engine v18 02 engine v18 01 engine v17 12 engine v17 11 engine v17 10 engine v17 09 engine v17 07 engine v17 06 engine v17 05 engine v17 04 engine v17 03 prior releases docker build core concepts docker build overview dockerfile overview build context build checks building multi stage variables secrets multi platform export binaries container device interface cdi best practices base images builders build drivers docker container driver docker driver kubernetes driver remote driver manage builders bake introduction targets inheritance variables expressions functions matrix targets contexts bake file reference bake standard library functions 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definitions exporters image and registry exporters local and tar exporters oci and docker exporters buildkit buildkitd toml configure buildkit custom dockerfile syntax dockerfile release notes debugging opentelemetry support build release notes docker compose introduction to compose how compose works why use compose history and development install plugin standalone legacy uninstall quickstart how tos specify a project name use lifecycle hooks use service profiles control startup order use environment variables set environment variables environment variables precedence pre defined environment variables interpolation best practices build dependent images use compose watch secrets in compose networking use multiple compose files merge extend include enable gpu support use compose in production oci artifact applications use provider services compose bridge usage customize use model runner compose sdk new trust model for compose files support and feedback faqs give feedback release notes 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allowlist explore docker desktop containers images volumes builds kubernetes logs beta resource saver mode pause docker desktop features and capabilities networking how tos gpu support usb ip support synchronized file shares containerd image store wasm workloads beta docker desktop cli virtual machine manager wsl best practices custom kernels use wsl settings and maintenance change settings backup and restore data troubleshoot and support troubleshoot and diagnose common topics known issues macos app damaged dialog faqs general mac windows linux releases give feedback uninstall release notes docker offload quickstart about configure usage optimize usage troubleshoot give feedback docker build cloud setup usage continuous integration optimization builder settings release notes docker hub quickstart library search trusted content catalogs mirror repositories create manage repository information access images tags immutable tags image management software artifacts push images move images 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markdown open markdown ask docs ai claude open in claude in earlier steps of the tutorial all the nodes have been running with active availability the swarm manager can assign tasks to any active node so up to now all nodes have been available to receive tasks sometimes such as planned maintenance times you need to set a node to drain availability drain availability prevents a node from receiving new tasks from the swarm manager it also means the manager stops tasks running on the node and launches replica tasks on a node with active availability important setting a node to drain does not remove standalone containers from that node such as those created with docker run docker compose up or the docker engine api a node s status including drain only affects the node s ability to schedule swarm service workloads if you haven t already open a terminal and ssh into the machine where you run your manager node for example the tutorial uses a machine named manager1 verify that all your nodes are actively available s gm copying true settimeout copying false 2000 docker node ls id hostname status availability manager status 1bcef6utixb0l0ca7gxuivsj0 worker2 ready active 38ciaotwjuritcdtn9npbnkuz worker1 ready active e216jshn25ckzbvmwlnh5jr3g manager1 ready active leader if you aren t still running the redis service from the rolling update tutorial start it now s gm copying true settimeout copying false 2000 docker service create replicas 3 name redis update delay 10s redis 7 4 0 c5uo6kdmzpon37mgj9mwglcfw run docker service ps redis to see how the swarm manager assigned the tasks to different nodes s gm copying true settimeout copying false 2000 docker service ps redis name image node desired state current state redis 1 7q92v0nr1hcgts2amcjyqg3pq redis 7 4 0 manager1 running running 26 seconds redis 2 7h2l8h3q3wqy5f66hlv9ddmi6 redis 7 4 0 worker1 running running 26 seconds redis 3 9bg7cezvedmkgg6c8yzvbhwsd redis 7 4 0 worker2 running running 26 seconds in this case the swarm manager distributed one task to each node you may see the tasks distributed differently among the nodes in your environment run docker node update availability drain node id to drain a node that had a task assigned to it s gm copying true settimeout copying false 2000 docker node update availability drain worker1 worker1 inspect the node to check its availability s gm copying true settimeout copying false 2000 docker node inspect pretty worker1 id 38ciaotwjuritcdtn9npbnkuz hostname worker1 status state ready availability drain snip the drained node shows drain for availability run docker service ps redis to see how the swarm manager updated the task assignments for the redis service s gm copying true settimeout copying false 2000 docker service ps redis name image node desired state current state error redis 1 7q92v0nr1hcgts2amcjyqg3pq redis 7 4 0 manager1 running running 4 minutes redis 2 b4hovzed7id8irg1to42egue8 redis 7 4 0 worker2 running running about a minute _ redis 2 7h2l8h3q3wqy5f66hlv9ddmi6 redis 7 4 0 ...