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Add check for missing elements and work through each array element regardless how it's spelt.

This commit is contained in:
Cyteen May 2020-02-29 11:03:07 +00:00
parent 880b371d2c
commit 643af6b3a0
1 changed files with 17 additions and 2 deletions
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19
docker_daemon-writer.sh
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@ -1,3 +1,5 @@
#!/usr/bin/env bash
# This script is inefficient by design, each setting is applied separately so that any that fail are easily identified and don't affect any of the others.
declare -A DOCKER_OPT
@ -69,15 +71,28 @@ DOCKER_OPT[65]='.["default-addresses-pools"] = [{"base":"172.80.0.0/16","size":2
if [ ! -f /tmp/daemon.json ]
then
touch /tmp/daemon.json
echo "{}" > /tmp/daemon.json
else
echo "/tmp/daemon.json exists."
fi
for ((i = 0; i < ${#DOCKER_OPT[@]}; ++i)); do
# Count through the number of array elements, using ${#
# looking for one missing.
for ((i = 1; i < ${#DOCKER_OPT[@]}; ++i)); do
if [ -z "${DOCKER_OPT[$i]}" ]; then
echo Error: $i missing.
exit 1
fi
done
# Work through each array element, using ${!.
# regardless how it's spelled.
for i in "${!DOCKER_OPT[@]}"; do
OPTION="${DOCKER_OPT[$i]}"
jq "${OPTION}" /tmp/daemon.json > /tmp/daemon.json.new && \
mv -b /tmp/daemon.json.new /tmp/daemon.json
done
cat /tmp/daemon.json | jq