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Petr Michalec epcim

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epcim /
Last active Jan 7, 2020
kubernetes job
kubectl get job -n sre kibana-config -o json | jq 'del(.spec.selector)' | jq 'del(.spec.template.metadata.labels)' | kubectl replace --force -f -

identify kubernetes pods with docker overlay2

(not the best output, but works)

TOP_STORAGE=$(du -hs /var/lib/docker/overlay2/* | grep -Ee '^[0-9]{3}[M]+|[0-9]G' | sort -h |tail -n 10 |tee -a /dev/stderr |awk '{print $2}'|xargs|sed 's/ /|/g')

docker inspect $(docker ps -q) | jq '.[]|.Config.Hostname,.Config.Labels."",.GraphDriver.Data.MergedDir,.hovno' | egrep -B2 "$TOP_STORAGE"

docker image inspect $(docker images -aq) | jq '.[]|.RepoDigests[0],.GraphDriver.Data.MergedDir,.hovno' |egrep -B2 "$TOP_STORAGE" 
epcim / hab clustered etcd
Created Sep 16, 2019
etcd habitat docker-compose hab
View hab clustered etcd
# See more:
# hab clustered etcd
## compose
cat <<EOF > docker-compose.yml
version: '3'
epcim /
Created Aug 26, 2019 — forked from rgl/
Wait for an HTTP endpoint to return 200 OK with Bash and curl
bash -c 'while [[ "$(curl -s -o /dev/null -w ''%{http_code}'' localhost:9000)" != "200" ]]; do sleep 5; done'
# also check
epcim /
Last active Jun 18, 2019
split needle csplit
# example usage: to split yaml with multiple documents
needle() {
csplit -b "%03d.$SUFFIX" -zsf $(basename $1 .$SUFFIX) $1 /$NEEDLE/+1 {*}
needle vega-objects.yaml
#!/bin/env python3
import gitlab
import sys
# private token or personal token authentication
gl = gitlab.Gitlab('', private_token='******')
if len(sys.argv) > 1:
if sys.argv[1].find("/") > 0:
epcim /
Last active Sep 16, 2019
hab habitat hab-sup deployment etcd

Simple deployment script to install habitat container with the app as systemd service.

export ALT=500 # Prefix for all the service names/ports used (apply to habitat/ inner service service)
# cleanup
systemctl stop etcd-$ALT
sleep 3
rm -f /etc/systemd/system/etcd-$ALT.service /etc/default/etcd-$ALT*
rm -rf /srv/etcd-$ALT
epcim /
Created May 13, 2019
debian livecd netboot
# Create a Custom Debian Live Environment (CD or USB)
View update from line
# rewrite part of the file from variable
sed -i "/^write_files:/{
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