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Script to safely de-register jenkins nodes usage: $ remove-nodes-safely.sh my-node-1 my-node-2 my-node-3
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#!/bin/bash | |
set -e | |
set -u | |
CI_MASTER_URL="http://ci-1" | |
node_online() { | |
curl --silent "$CI_MASTER_URL/computer/$1/api/json" | grep --silent '"temporarilyOffline":false' | |
} | |
node_busy() { | |
curl --silent "$CI_MASTER_URL/computer/$1/api/json" | grep --silent '"idle":false' | |
} | |
toggle_node_online() { | |
curl --silent "$CI_MASTER_URL/computer/$1/toggleOffline" --request 'POST' --data 'offlineMessage=Pending node re-image' | |
} | |
deregister_node() { | |
curl --silent "$CI_MASTER_URL/computer/$1/doDelete" --request 'POST' --data '' | |
} | |
wait_for_node() { | |
while node_busy $1; do | |
sleep 20 | |
echo -n "." | |
done | |
echo "" | |
} | |
# Mark nodes offline | |
for NODE in "$@" | |
do | |
if node_online $NODE; then | |
echo "Marking node $NODE as offline" | |
toggle_node_online $NODE | |
else | |
echo "Node $NODE is already offline" | |
fi | |
done | |
# Wait for nodes to finish current workload | |
for NODE in "$@" | |
do | |
if node_busy $NODE; then | |
echo "Waiting for node $NODE to finish its current work" | |
wait_for_node $NODE | |
echo "Node $NODE has finished its work" | |
else | |
echo "Node $NODE is not busy" | |
fi | |
done | |
# De-register nodes | |
for NODE in "$@" | |
do | |
echo "Permanently removing $NODE from Jenkins" | |
deregister_node $NODE | |
done |
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