2e82d7f214
Adds conflict checking to the sysctl-write-value script to detect settings from multiple elements conflicting. Change-Id: If312d199388036d6f4103e94dca99249cb3bcbaf
43 lines
995 B
Bash
Executable file
43 lines
995 B
Bash
Executable file
#!/bin/bash
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#
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# Copied from tripleo-image-element's sysctl element
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#
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# Validate and manage setting sysctl settings.
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#
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# The script is called with name/value pairs which are stored
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# in the system default sysctl.d directory. This script performs
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# no checking, just writing out the file.
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if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
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set -x
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fi
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set -eu
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set -o pipefail
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NAME=${1:-}
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VALUE=${2:-}
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# Optional comment used to describe the setting
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COMMENT=${3:-"This file was created by diskimage-builder."}
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if [ -z "$NAME" -o -z "$VALUE" ]; then
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echo "Usage: sysctl-write-value <name> <value> [comment]"
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exit 1
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fi
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FILENAME="/etc/sysctl.d/${NAME}.conf"
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if [ -f $FILENAME ]; then
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# check to make sure the settings match... otherwise fail
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if ! grep -q "^$NAME = $VALUE" $FILENAME; then
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echo "Conflicting sysctl.conf setting for $NAME == $VALUE. Found:"
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grep "^$NAME" $FILENAME
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exit 1
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fi
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else
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cat > $FILENAME <<EOF_CAT
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# $COMMENT
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$NAME = $VALUE
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EOF_CAT
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fi
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