Thenewstack.io Identifying Collecting Container Data (thenewstack.io).The output is live streaming data that updates in real-time with the cpu, memory, io, and so on. When using the stats command, you can view all running containers together, or specify just one container you want to look at. For example: $ docker container inspect nginx | Select-String -Pattern IPAddress Since the output is so large, you can pipe the results to either Select-String in Powershell, or grep in bash. "maintainer": "NGINX Docker Maintainers " "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", The output is in JSON format and contains literally all of the data about how the container was started. Here we inspect the Nginx container in our environment. Either the name or id can be used to identify an image or container. The inspect command can be run on one or more images or containers. We can do a similar thing in Docker.ġ493 root 0:00 nginx: master process nginx -g daemon off It provides a dynamic real-time view of the running system. In Linux, the top command is used to show the Linux processes. $ docker container run -d -name mysql -e MYSQL_RANDOM_ROOT_PASSWORD=true mysqlĮ9263551f40fb30deb0b09434bf26697fce3eaf3370141d01c209d997c73885bĬONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMESĮ9263551f40f mysql "docker-entrypoint.s…" 26 seconds ago Up 25 seconds 3306/tcp, 33060/tcp mysqlĭ4f849b858a9 nginx "/docker-entrypoint.…" 49 seconds ago Up 48 seconds 80/tcp nginx We can launch an Nginx container, a MySQL container, and then list them in their running state.
#Monit docker containers how to
We’ve seen how to run multiple containers, so let’s bring a couple up again. To test out the monitoring commands for docker containers, first, we need to spin up a few containers to work with. Let’s look at some of these commands in action. The stats command can be used to look at all running container’s stats or one at a time in a real-time stream output to the terminal. The inspect command is quite interesting as it provides the details of how a container started and how it is configured. The top command is a process list in one container. There are several docker commands to do this with the most common ones being docker container top, docker container inspect, and docker container stats. This tutorial will focus on seeing what is going on inside the containers you are running.
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