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cleanup-analyzer.sh
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cleanup-analyzer.sh
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#!/bin/bash
################################################################################
# Cleanup Analyzer #
# #
# Script to analyze which Deployments, Images and ReplicaSets could be #
# cleaned up and to generate cleanup scripts. #
# #
# #
################################################################################
################################################################################
################################################################################
# #
# Copyright (C) 2022 Peter Ducai #
# peter.ducai@gmail.com #
# pducai@icloud.com #
# #
# This program is free software; you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation; either version 2 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program; if not, write to the Free Software #
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA #
# #
################################################################################
################################################################################
################################################################################
STAMP=$(date +%Y-%m-%d_%H-%M-%S)
CLIENT="oc"
MUST_PATH=$1
ORIG_PATH=$(pwd)
OUTPUT_PATH=$ORIG_PATH/DATA
OLDER_THAN=30
#rm -rf $OUTPUT_PATH
mkdir -p $OUTPUT_PATH
PARAMS=""
while (( "$#" )); do
case "$1" in
-f|--force)
FORCE_DELETION=0
shift
;;
-k|--kubectl)
if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
CLIENT="kubectl"
ETCD_NS="kube-system"
shift 2
else
echo "Error: Argument for $1 is missing" >&2
exit 1
fi
;;
-o|--olderthan)
if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
OLDER_THAN=$2
shift 2
else
echo "Error: Argument for $1 is missing" >&2
exit 1
fi
;;
-*|--*=) # unsupported flags
echo "Error: Unsupported flag $1" >&2
print_help
exit 1
;;
*) # preserve positional arguments
PARAMS="$PARAMS $1"
shift
;;
esac
done
# set positional arguments in their proper place
eval set -- "$PARAMS"
# FUNCTIONS
print_help() {
echo -e "Depending on the size of cluster, this script can run from several seconds to several minutes."
echo -e ""
echo -e $STAMP
echo -e "SUMMARY:"
echo -e ""
echo -e "HELP:"
# echo -e "-f | --force : to actually delete ReplicaSets not in use. (Not implemented)"
# echo -e "-g | --graph : graph referenced images. (Not implemented)"
echo -e "-o | --olderthan : print all unused deployments and replicasets, older than X days"
echo -e ""
}
namespaces() {
echo -e ""
echo -e "[NAMESPACES]--------------------------------"
oc get ns |grep -v openshift|grep -v kube|grep -v default > $OUTPUT_PATH/ns.log
oc get ns > $OUTPUT_PATH/ns_all.log
echo -e ""
echo -e "$(cat $OUTPUT_PATH/ns.log|wc -l) non-openshift namespaces."
echo -e "$(cat $OUTPUT_PATH/ns_all.log|wc -l) namespaces together."
}
imagestreams() {
echo -e ""
echo -e "[IMAGESTREAMS]--------------------------------"
$CLIENT get imagestream -A -o jsonpath="{..dockerImageReference}" | tr -s '[[:space:]]' '\n'| sort | uniq > $OUTPUT_PATH/is_images.log
$CLIENT get is -A > $OUTPUT_PATH/is.log
ISALL=$(cat $OUTPUT_PATH/is_images.log|uniq|wc -l)
ISDEV=$(cat $OUTPUT_PATH/is_images.log|uniq|grep openshift-release-dev|wc -l)
echo -e ""
echo -e "$ISALL images referenced by Imagestreams."
echo -e "$ISDEV openshift-release-dev images referenced by Imagestreams."
echo -e "$(("$ISALL"-"$ISDEV")) other images referenced by Imagestreams."
echo -e ""
cat $OUTPUT_PATH/is_images.log |cut -d/ -f1,2|sort -k1,2|uniq -c|sort -n --rev|head -10
}
imagestreamtags() {
echo -e ""
echo -e "[IMAGESTREAMTAGS]--------------------------------"
$CLIENT get imagestream -A -o jsonpath="{.output.to.name}" | tr -s '[[:space:]]' '\n'| sort | uniq > $OUTPUT_PATH/is_images.log
$CLIENT get is -A > $OUTPUT_PATH/is.log
ISALL=$(cat $OUTPUT_PATH/is_images.log|uniq|wc -l)
ISDEV=$(cat $OUTPUT_PATH/is_images.log|uniq|grep openshift-release-dev|wc -l)
echo -e "IMAGESTREAMTAGS: there are $ISALL images referenced by Imagestreamtags."
echo -e "IMAGESTREAMTAGS: there are $ISDEV openshift-release-dev images referenced by Imagestreamtags."
echo -e "IMAGESTREAMTAGS: there are $(("$ISALL"-"$ISDEV")) other images referenced by Imagestreamtags."
echo -e "..."
cat $OUTPUT_PATH/is_images.log |cut -d/ -f1,2|sort -k1,2|uniq -c|sort -n --rev|head -10
}
pods() {
echo -e ""
echo -e "[PODS]--------------------------------"
echo -e ""
$CLIENT get pods -A|tail -n +2 > $OUTPUT_PATH/pod.log
echo -e "$(cat $OUTPUT_PATH/pod.log|wc -l) pods together."
$CLIENT get pods -A -o jsonpath="{..image}" | tr -s '[[:space:]]' '\n'| sort | uniq > $OUTPUT_PATH/pod_images.log
echo -e "$(cat $OUTPUT_PATH/pod_images.log|wc -l) images referenced by pods."
echo -e ""
cat $OUTPUT_PATH/pod_images.log |cut -d/ -f1,2|sort -k1,2|uniq -c|sort -n --rev|head -10
}
# REPLICASETS
replicasets() {
echo -e ""
echo -e "[REPLICASETS]--------------------------------"
echo -e ""
$CLIENT get replicasets -A > $OUTPUT_PATH/rs.log
cat $OUTPUT_PATH/rs.log |grep -E '0{1}\s+0{1}\s+0{1}'| awk -v OLDER_THAN=$OLDER_THAN '($6*3600) > ( OLDER_THAN * 3600) {print $1, $2, $6 }'|sort -k 3n|uniq > $OUTPUT_PATH/rs_inactiv.log
cat $OUTPUT_PATH/rs_inactiv.log|grep -v openshift|awk -v OLDER_THAN=$OLDER_THAN '($3*3600) > ( OLDER_THAN*3600 ) {print "oc delete rs -n " $1, $2 }' > $OUTPUT_PATH/older_than_${OLDER_THAN}days.sh
cat $OUTPUT_PATH/rs_inactiv.log|grep openshift|awk -v OLDER_THAN=$OLDER_THAN '($3*3600) > ( OLDER_THAN*3600 ) {print "oc delete rs -n " $1, $2 }' > $OUTPUT_PATH/older_ocp_than_${OLDER_THAN}days.sh
#cat $OUTPUT_PATH/rs.log |grep -E '0{1}\s+0{1}\s+0{1}'| awk '{print "-n " $1, $2}'|sort|uniq > $OUTPUT_PATH/rs_inactive.log
#cat rs.log |grep -E '0{1}\s+0{1}\s+0{1}'| awk '{print "oc describe rs -n " $1, $2, $6, ($6*3600) }'|sort -k 7n|uniq
$CLIENT get rs -A -o jsonpath="{..image}" | tr -s '[[:space:]]' '\n' | sort | uniq > $OUTPUT_PATH/rs_images.log
$CLIENT get replicasets -A | awk '{print "-n " $1, $2}'|sort|uniq > $OUTPUT_PATH/replicasetsns.log
echo -e "$(cat $OUTPUT_PATH/rs.log|wc -l) ReplicaSets."
echo -e "$(cat $OUTPUT_PATH/rs_inactiv.log|wc -l) INACTIVE ReplicaSets."
echo -e "$(cat $OUTPUT_PATH/rs_inactiv.log|grep 'openshift-'|wc -l) INACTIVE openshift-* ReplicaSets."
echo -e "$(cat $OUTPUT_PATH/rs_inactiv.log|grep -v 'openshift-'|wc -l) INACTIVE non OCP ReplicaSets."
echo -e "$(cat $OUTPUT_PATH/rs_images.log|wc -l) images referenced by ReplicaSets."
echo -e ""
echo -e "$(cat $OUTPUT_PATH/rs_inactiv.log|wc -l) replicasets older than $OLDER_THAN days"
echo -e "All inactive non-openshift/user RS are written to $OUTPUT_PATH/older_than_${OLDER_THAN}days.sh"
echo -e "All inactive openshift- RS are written to $OUTPUT_PATH/older_ocp_than_${OLDER_THAN}days.sh"
echo -e ""
cat $OUTPUT_PATH/rs_images.log |cut -d/ -f1,2|sort -k1,2|uniq -c|sort -n --rev|head -10
# cat $OUTPUT_PATH/rs.log |grep -E '0{1}\s+0{1}\s+0{1}'| awk '($6*3600) > (20*3600) {print "oc describe rs -n " $1, $2, $6 }'|sort -k 7n|uniq
}
deployments() {
echo -e ""
echo -e "[DEPLOYMENTS]--------------------------------"
echo -e ""
$CLIENT get deployment -A|tail -n +2 > $OUTPUT_PATH/deployment.log
echo -e "$(cat $OUTPUT_PATH/deployment.log|wc -l) deployments."
cat $OUTPUT_PATH/deployment.log |grep -E '0{1}\s+0{1}\s'| awk -v OLDER_THAN=$OLDER_THAN '($6*3600) > ( OLDER_THAN * 3600) {print " " $1, $2, $6 }'|sort -k 3n|uniq > $OUTPUT_PATH/dep_inactiv.log
cat $OUTPUT_PATH/deployment.log |awk '{print $2" -n "$1}' > $OUTPUT_PATH/deploy.log
$CLIENT get deployment -A -o jsonpath="{..image}" | tr -s '[[:space:]]' '\n' | sort | uniq > $OUTPUT_PATH/depimage.log
echo -e "$(cat $OUTPUT_PATH/depimage.log|sort|uniq|wc -l) images referenced by Deployments."
echo -e ""
echo -e "$(cat $OUTPUT_PATH/dep_inactiv.log|wc -l) inactive deployments older than $OLDER_THAN days"
echo -e ""
cat $OUTPUT_PATH/dep_inactiv.log|cut -d/ -f1,2|sort -k1,2|uniq -c|sort -n --rev|head -10
}
buildconfigs() {
echo -e ""
echo -e "[BUILDCONFIGS]--------------------------------"
echo -e ""
$CLIENT get buildconfig -A -o jsonpath='{range .items[*].spec.output.to}{"\n"}{.name}' | tr -s '[[:space:]]' '\n'| sort | uniq > $OUTPUT_PATH/bc_images.log
$CLIENT get bc -A > $OUTPUT_PATH/bc.log
BCALL=$(cat $OUTPUT_PATH/bc_images.log|uniq|wc -l)
BCDEV=$(cat $OUTPUT_PATH/bc_images.log|uniq|grep openshift-release-dev|wc -l)
echo -e "$BCALL images referenced by BuildConfigs."
echo -e "$BCDEV openshift-release-dev images referenced by BuildConfigs."
echo -e "$(("$BCALL"-"$BCDEV")) non-openshift images referenced by BuildConfigs."
echo -e ""
cat $OUTPUT_PATH/bc_images.log |cut -d/ -f1,2|sort -k1,2|uniq -c|sort -n --rev|head -10
}
#NEW
xbuildconfigs() {
echo -e ""
echo -e "[IMAGESTREAMS]--------------------------------"
$CLIENT get bc -A -o jsonpath="{..dockerImageReference}" | tr -s '[[:space:]]' '\n'| sort | uniq > $OUTPUT_PATH/is_images.log
$CLIENT get bc -A > $OUTPUT_PATH/is.log
ISALL=$(cat $OUTPUT_PATH/is_images.log|uniq|wc -l)
ISDEV=$(cat $OUTPUT_PATH/is_images.log|uniq|grep openshift-release-dev|wc -l)
echo -e "IMAGESTREAM: there are $ISALL images referenced by Imagestreams."
echo -e "IMAGESTREAM: there are $ISDEV openshift-release-dev images referenced by Imagestreams."
echo -e "IMAGESTREAM: there are $(("$ISALL"-"$ISDEV")) other images referenced by Imagestreams."
echo -e "..."
cat $OUTPUT_PATH/is_images.log |cut -d/ -f1,2|sort -k1,2|uniq -c|sort -n --rev|head -10
}
jobs() {
echo -e ""
echo -e "[JOBS]"
$CLIENT get jobs -A|tail -n +2 > $OUTPUT_PATH/jobs.log
echo -e "JOBS: there are $(cat $OUTPUT_PATH/jobs.log|wc -l) jobs."
}
delete_rs() {
$CLIENT delete rs $1
}
list_all() {
echo -e ""
echo -e "DEPLOYMENT LIST:"
echo -e "------------------------------------------------"
echo -e "$(cat $OUTPUT_PATH/dep_inactiv.log)"
echo -e ""
echo -e ""
echo -e "RS LIST:"
echo -e "------------------------------------------------"
echo -e "$(cat $OUTPUT_PATH/rs_inactiv.log)"
echo -e ""
}
diffing() {
# echo -e "diffing.."
# Print images not used by any pod
awk 'NR == FNR{ a[$0] = 1;next } !a[$0]' $OUTPUT_PATH/pod_images.log $OUTPUT_PATH/is_images.log > $OUTPUT_PATH/podis.log
# Print images not used by any Deployment
awk 'NR == FNR{ a[$0] = 1;next } !a[$0]' $OUTPUT_PATH/deploy.log $OUTPUT_PATH/is_images.log > $OUTPUT_PATH/depis.log
awk 'NR == FNR{ a[$0] = 1;next } !a[$0]' $OUTPUT_PATH/depis.log $OUTPUT_PATH/podis.log > $OUTPUT_PATH/EXCESS.log
}
# MAIN
print_help
namespaces
imagestreams
pods
deployments
buildconfigs
replicasets
jobs
#list_all
diffing
echo -e ""
echo -e "[END]"
#oc get deploy -A -o jsonpath='{range .items[*]}{.metadata.name} revision:{.metadata.annotations.deployment\.kubernetes\.io\/revision}{"\n"} {end}'