Created
October 17, 2020 17:02
-
-
Save ejlevin1/2f771ea9e424b0802bde01a407a793e7 to your computer and use it in GitHub Desktop.
Script to follow or purge a docker container log by id or name.
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
#!/bin/bash | |
set -e | |
set -u | |
set -o pipefail | |
debug=0 | |
purge=0 | |
follow=0 | |
while getopts 'c:fpn:v' OPTION; do | |
case "$OPTION" in | |
c) | |
container_id="$OPTARG" | |
;; | |
f) | |
follow=1 | |
;; | |
p) | |
purge=1 | |
;; | |
n) | |
echo "The container name provided is $OPTARG" | |
container_id=$(docker ps -aqf "name=^$OPTARG$") | |
;; | |
v) | |
verbose=1 | |
;; | |
?) | |
echo "script usage: $(basename $0) [-c container_id] [-n container_name] [-v] [-p] [-f]" >&2 | |
echo "-v (verbose)" >&2 | |
echo "-c container_id" >&2 | |
echo "-n container_name" >&2 | |
echo "-p (purge)" >&2 | |
echo "-f (follow)" >&2 | |
exit 1 | |
;; | |
esac | |
done | |
shift "$(($OPTIND -1))" | |
if [[ -z $container_id ]]; then | |
echo "No container specified" | |
exit 1 | |
fi | |
echo "The container id provided is [$container_id]" | |
if [[ "$(docker ps -aq -f id=$container_id 2> /dev/null)" == "" ]]; then | |
echo "Container \"$container_id\" does not exist, exiting." | |
exit 1 | |
fi | |
log=$(docker inspect -f '{{.LogPath}}' $container_id 2> /dev/null) | |
if [[ $log == "" ]] | |
then | |
echo "No log file found. Exiting." | |
exit 0 | |
fi | |
if [[ $purge -gt 0 ]] | |
then | |
echo "Purging log file." | |
truncate -s 0 $log | |
fi | |
if [[ $follow -gt 0 ]] | |
then | |
docker logs -f "$container_id" | |
fi |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment