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Allow users to run custom scripts before starting dd-agent #115

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Allow users to run custom scripts before starting dd-agent #115

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7b4fce0
Fix Whitespace Issues
apeschel Aug 8, 2016
77f2f80
Add Ability to Load Custom Scripts
apeschel Aug 8, 2016
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60 changes: 42 additions & 18 deletions entrypoint.sh
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Original file line number Diff line number Diff line change
@@ -1,35 +1,37 @@
#!/bin/bash
#set -e

shopt -s nullglob # required to handle case that directories are empty.

if [[ $DD_API_KEY ]]; then
export API_KEY=${DD_API_KEY}
export API_KEY=${DD_API_KEY}
fi

if [[ $API_KEY ]]; then
sed -i -e "s/^.*api_key:.*$/api_key: ${API_KEY}/" /etc/dd-agent/datadog.conf
sed -i -e "s/^.*api_key:.*$/api_key: ${API_KEY}/" /etc/dd-agent/datadog.conf
else
echo "You must set API_KEY environment variable to run the Datadog Agent container"
exit 1
echo "You must set API_KEY environment variable to run the Datadog Agent container"
exit 1
fi

if [[ $DD_HOSTNAME ]]; then
sed -i -e "s/^#hostname.*$/hostname: ${DD_HOSTNAME}/" /etc/dd-agent/datadog.conf
sed -i -e "s/^#hostname.*$/hostname: ${DD_HOSTNAME}/" /etc/dd-agent/datadog.conf
fi

if [[ $DD_TAGS ]]; then
export TAGS=${DD_TAGS}
export TAGS=${DD_TAGS}
fi

if [[ $EC2_TAGS ]]; then
sed -i -e "s/^# collect_ec2_tags.*$/collect_ec2_tags: ${EC2_TAGS}/" /etc/dd-agent/datadog.conf
sed -i -e "s/^# collect_ec2_tags.*$/collect_ec2_tags: ${EC2_TAGS}/" /etc/dd-agent/datadog.conf
fi

if [[ $TAGS ]]; then
sed -i -e "s/^#tags:.*$/tags: ${TAGS}/" /etc/dd-agent/datadog.conf
sed -i -e "s/^#tags:.*$/tags: ${TAGS}/" /etc/dd-agent/datadog.conf
fi

if [[ $DD_LOG_LEVEL ]]; then
export LOG_LEVEL=$DD_LOG_LEVEL
export LOG_LEVEL=$DD_LOG_LEVEL
fi

if [[ $LOG_LEVEL ]]; then
Expand Down Expand Up @@ -82,10 +84,10 @@ fi

if [[ $KUBERNETES || $MESOS_MASTER || $MESOS_SLAVE ]]; then
# expose supervisord as a health check
echo "
[inet_http_server]
port = 0.0.0.0:9001
" >> /etc/dd-agent/supervisor.conf
cat >> /etc/dd-agent/supervisor.conf <<-EOF
[inet_http_server]
port = 0.0.0.0:9001
EOF
fi

if [[ $KUBERNETES ]]; then
Expand Down Expand Up @@ -115,14 +117,36 @@ if [[ $MARATHON_URL ]]; then
sed -i -e "s@# - url: \"https://server:port\"@- url: ${MARATHON_URL}@" /etc/dd-agent/conf.d/marathon.yaml
fi

find /conf.d -name '*.yaml' -exec cp {} /etc/dd-agent/conf.d \;

find /checks.d -name '*.py' -exec cp {} /etc/dd-agent/checks.d \;
# Copy in configs
for f in /conf.d/*; do
case "$f" in
*.yaml) echo "$0: copying $f"; cp "$f" /etc/dd-agent/conf.d ;;
*) echo "$0: ignoring $f" ;;
esac
echo
done

# Copy in checks
for f in /checks.d/*; do
case "$f" in
*.py) echo "$0: copying $f"; cp "$f" /etc/dd-agent/checks.d ;;
*) echo "$0: ignoring $f" ;;
esac
done

# Run custom loaded shell scripts
for f in /entrypoint-init.d/*; do
case "$f" in
*.sh) echo "$0: running $f"; . "$f" ;;
*) echo "$0: ignoring $f" ;;
esac
echo
done

export PATH="/opt/datadog-agent/embedded/bin:/opt/datadog-agent/bin:$PATH"

if [[ $DOGSTATSD_ONLY ]]; then
PYTHONPATH=/opt/datadog-agent/agent /opt/datadog-agent/embedded/bin/python /opt/datadog-agent/agent/dogstatsd.py
PYTHONPATH=/opt/datadog-agent/agent /opt/datadog-agent/embedded/bin/python /opt/datadog-agent/agent/dogstatsd.py
else
exec "$@"
exec "$@"
fi