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A simple script to count the containers on a Docker host.
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#!/bin/bash | |
function countContainers() { | |
docker ps -q $1 | wc -l | |
} | |
function countCrashedContainers() { | |
docker ps -a | grep -v -F 'Exited (0)' | grep -c -F 'Exited (' | |
} | |
TYPE=${1-all} | |
case $TYPE in | |
running) COUNT_FUNCTION="countContainers"; shift;; | |
crashed) COUNT_FUNCTION="countCrashedContainers"; shift;; | |
all) COUNT_FUNCTION="countContainers -a"; shift;; | |
esac | |
$COUNT_FUNCTION |
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