09.06.2015 · I'm using docker-machine to manage my cloud servers. I'm writing some bash scripts to automate some tasks. The question is: "How to check in bash script if docker machine with the specific name already exists?". I need some expression to return true if it exists and false if it doesn't. Thanks
If sudo docker images -q nginx gives you a string if the container exists and nothing if it doesn't, then you may store that in a variable and see if it's ...
docker network inspect Description 🔗 Display detailed information on one or more networks API 1.21+ The client and daemon API must both be at least 1.21 to use this command. Use the docker version command on the client to check your client and daemon API versions. Usage 🔗 $ docker network inspect [OPTIONS] NETWORK [NETWORK...]
I tried docker images -q {Image Name} as suggested in the "best answer" but it only returned the ID of the Image, not of the container. No matter if the container is running or not, it always returns the Image ID. If you want to know whether or not the CONTAINER is running, you need to apply the following command:
Jun 06, 2020 · For example to check whether the /etc/docker directory exist you would use: FILE=/etc/docker if [ -d "$FILE" ]; then echo "$FILE is a directory." fi [ -d /etc/docker ] && echo "$FILE is a directory." You can also use the double brackets [ [ instead of a single one [. Check if File does Not Exist
29.03.2021 · 2 minutes ago Up 2 minutes 0.0.0.0:80->80/tcp web-server 4ab8551671d7 nginx "/docker-entrypoint.…" 6 minutes ago Up 6 minutes 80/tcp vigilant_ganguly $ Here the one I want to troubleshoot is the container with ID 0ce7cfb9be37. Now to get a shell (bash) session of this container, use: $ docker exec -it 0ce7cfb9be37 bash
06.06.2020 · Many times when writing Shell scripts, you may find yourself in a situation where you need to perform an action based on whether a file exists or not. In Bash you can use the test command to check whether a file exist and determine the type of the file.
jwilder/nginx-proxy - Check if Docker network and container exist ... #!/bin/bash ... script to check if the jwilder proxy container is already running.
Aug 06, 2020 · If we do it with a script, one of the first steps we take is to check whether a Docker container with some given name exists and what is its current status. The examples below show how to implement such checks in Bash. Check if a Docker container exists. Create and run a container ( I will use alpine:latest in my examples):
Bash Script to Check the Status of a Docker Container. This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters. # Depending on your docker configuration ...
Jun 10, 2015 · I'm using docker-machine to manage my cloud servers. I'm writing some bash scripts to automate some tasks. The question is: "How to check in bash script if docker machine with the specific name already exists?". I need some expression to return true if it exists and false if it doesn't. Thanks
@user3142695 whether container exist or not, command always return a exit status. if container doesn't exist then it will return non-zero exit status. – Rakesh.N Feb 10 '17 at 9:40
docker network inspect: Returns information about one or more networks. ... Use the docker version command on the client to check your client and daemon API ...
The network:exists command will return non-zero if the network does not exist, and zero if it does. Checking network info. New as of 0.20.0, Requires Docker ...
06.08.2020 · The check consists of the following steps. We start by outputting a list of containers with any status, we search for a testContainer text in the output and we count the resulting lines. If the number of lines is greater than zero, we output testContainer exists. otherwise, we output testContainer does not exist.. If you have several containers with similar names running at the …