Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Block until one or more containers stop, after that it print their exit codes.root@ip-172-31-28-155:/home/ubuntu# docker wait test_httpd root@ip-172-31-28-155:/home/ubuntu# docker stop test_httpdtest_httpd root@ip-172-31-28-155:/home/ubuntu# docker wait test_httpd0

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Docker Hub is a service provided by Docker for finding and sharing container images. Teams & Organizations can pull publicly available docker images for their usage. Top 5 docker repository Rank Repository 1 ubuntu 2 centos 3 nginx 4 redis 5 node

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Docker update command updates the container properties. In the below example I have update –memory-reservation

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now docker wait command will block one or multiple containers until it is stopped. Once the container is stopped it will retun 0 meaning that the container is stopped.

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now docker update command is used to update the default configuration of a specific container.for example, limiting resources like memory, cpu etc

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Docker wait command block until one or more containers stop, then print their exit codes Usage

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Block until one or more containers stop, then print their exit codes. Example: Terminal 1: root@ip-172-31-28-155:/home/ubuntu# docker wait test_su1 Terminal 2: root@ip-172-31-28-155:/home/ubuntu# docker stop test_su1 Terminal 1: root@ip-172-31-28-155:/home/ubuntu# docker wait test_su10

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Q1. – What is the use of “docker update” commands? with example and image The docker update command dynamically updates container configuration. it prevent containers from consuming too many resources such as CPU and memory from their Docker host. ex:

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now A Loop is an Iterative Control Structure that involves executing the same number of code a number of times until a certain condition is fulfilled Types of Loops in PHP while  do-while loop for loop foreach loop 1 . While :-The while loop is an entry control loop like for loops i.e., it first

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now The docker update command dynamically updates container configuration. For example : We can update a container’s kernel memory limit using the –kernel-memory option. You can update kernel memory while the container is running using below command:

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Used for updating the various confgurations of a container or multiple containers. We can update the configuration of running/stopped containers except –kernel-memory. Various Options available. Use case: The main usecase is to limit the amount of host resources like CPU, RAM , that can be used by the container.

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Docker update command is used to update the configuration of the already created docker image. We can update the CPU, memory etc. by using the update command. Eg : docker update –memory 8M 829414517f17 Result : 829414517f17 aji_0 0.00% 7.445MiB / 8MiB 93.07% 1.51kB / 0B 0B / 0B 82

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Image 1: Ran golang image and executed the image to get the go version. Image2:Ran python image and executed the container Image3:Ran openjdk image and executed the container for java version Image4:Searched for some fun image and got cat image (docker run –rm -it wernight/funbox nyancat) Image5: Create a container for alpine image and

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now docker update command is to set limits to a single container or multiple contianers. We can limit such as input/output resources, cpu runtime period, cpu-quota and cpu shares.

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now “docker update” command dynamically updates container configuration.Using this command we can restrict the usage of too many resources by a container.Example : docker update –kernel-memory 50M ad5f8182d65e –> Update kernel memory while the container is running

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now docker pause pauses a running container. docker unpause changes a paused container to RUNNING state

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now docker stop command stops the container ie, changes status from RUNNING to EXITED. The client can restart the docker container if they want. docker kill command kills the docker container. The image can be removed from the docker after kill.

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now If we want to pause the processes running inside the container, we can use the “docker pause” command. To unpause is, use ” docker unpause “

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now Q1. Explain What is Docker Container with image? A container which contains our image with root file system, 1 PID, 1 NW, 1 MNT, 1 USER. Q2. What is the difference between docker stop and docker kill? docker stop and docker kill doing the same thing only the internal process have difference. Both stops

Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now The docker pause command suspends all processes in the specified containers. We can apply this command , if the container is in running stateThe docker unpause command un-suspends all processes in the specified containers. We can apply this command , if the container is in pause state docker pause <container name> docker unpause <container