Trigger something that will wake up the system.Įmploy features that can block system suspend. Use reboot(2) and kexec_load(2), reboot and load a new kernel for later execution.Įstablish leases on arbitrary files (see fcntl(2)). Trace arbitrary processes using ptrace(2).
Lock memory (mlock(2), mlockall(2), mmap(2), shmctl(2)).īypass permission checks for operations on System V IPC objects. Make socket broadcasts, and listen to multicasts. Set the FS_APPEND_FL and FS_IMMUTABLE_FL i-node flags. Perform various network-related operations.īypass file read permission checks and directory read and execute permission checks. Implemented for the Smack Linux Security Module (LSM).
Use vhangup(2) employ various privileged ioctl(2) operations on virtual terminals.Įnable and disable kernel auditing change auditing filter rules retrieve auditing status and filtering rules.Īllow MAC configuration or state changes. Set system clock (settimeofday(2), stime(2), adjtimex(2)) set real-time (hardware) clock. Raise process nice value (nice(2), setpriority(2)) and change the nice value for arbitrary processes. Perform a range of system administration operations. Use acct(2), switch process accounting on or off. Perform I/O port operations (iopl(2) and ioperm(2)). If you omit the size entirely, the system uses 64m. If you omit the unit, the system uses bytes. Unit is optional and can be b (bytes), k (kilobytes), m (megabytes), or g (gigabytes). Tune a container’s memory swappiness behavior. Tune container’s OOM preferences (-1000 to 1000) Whether to disable OOM Killer for the container or not. Limit write rate (IO per second) to a device (format: :). Limit read rate (IO per second) from a device (format: :). Limit write rate to a device (format: :). Limit read rate from a device (format: :). īlock IO weight (relative device weight, format: DEVICE_NAME:WEIGHT) Limit the CPU CFS (Completely Fair Scheduler) quotaīlock IO weight (relative weight) accepts a weight value between. Memory nodes (MEMs) in which to allow execution (0-3, 0,1). Limit the CPU CFS (Completely Fair Scheduler) periodĬPUs in which to allow execution (0-3, 0,1) Total memory limit (memory + swap, format: ). Alternatively, create a PR to suggest updates.Memory limit (format: ). Let us know what you think by creating an issue in the Docker Docs GitHub repository. Help us improve this topic by providing your feedback.
In the next module, we’ll learn how to run a database in a container and connect it to our application.
We also looked at naming our containers so they are more easily identifiable. We also took a look at managing containers by starting, stopping, and restarting them. In this module, we took a look at running containers, publishing ports, and running containers in detached mode. Now, we can easily identify our container based on the name. Execute the following command in your terminal. Let’s start our image and make sure it is running correctly. The docker run command requires one parameter and that is the image name. To run an image inside of a container, we use the docker run command.
Now that we have an image, we can run that image and see if our application is running correctly.Ī container is a normal operating system process except that this process is isolated and has its own file system, its own networking, and its own isolated process tree separate from the host. We created our image using the command docker build. In the previous module we created our sample application and then we created a Dockerfile that we used to create an image. Work through the steps to build a Node JS image in Build your Node image.