79 lines
2.3 KiB
Bash
79 lines
2.3 KiB
Bash
#!/bin/sh
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#
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# This script launches nginx and the NGINX Amplify Agent.
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#
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# Unless already baked in the image, a real API_KEY is required for the
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# NGINX Amplify Agent to be able to connect to the backend.
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#
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# If AMPLIFY_IMAGENAME is set, the script will use it to generate
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# the 'imagename' to put in the /etc/amplify-agent/agent.conf
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#
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# If several instances use the same imagename, the metrics will
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# be aggregated into a single object in Amplify. Otherwise NGINX Amplify
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# will create separate objects for monitoring (an object per instance).
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#
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# Variables
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agent_conf_file="/etc/amplify-agent/agent.conf"
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agent_log_file="/var/log/amplify-agent/agent.log"
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nginx_status_conf="/etc/nginx/conf.d/stub_status.conf"
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api_key=""
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amplify_imagename=""
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# Launch nginx
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echo "starting nginx ..."
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nginx -g "daemon off;" &
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nginx_pid=$!
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test -n "${API_KEY}" && \
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api_key=${API_KEY}
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test -n "${AMPLIFY_IMAGENAME}" && \
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amplify_imagename=${AMPLIFY_IMAGENAME}
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if [ -n "${api_key}" -o -n "${amplify_imagename}" ]; then
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echo "updating ${agent_conf_file} ..."
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if [ ! -f "${agent_conf_file}" ]; then
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test -f "${agent_conf_file}.default" && \
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cp -p "${agent_conf_file}.default" "${agent_conf_file}" || \
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{ echo "no ${agent_conf_file}.default found! exiting."; exit 1; }
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fi
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test -n "${api_key}" && \
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echo " ---> using api_key = ${api_key}" && \
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sh -c "sed -i.old -e 's/api_key.*$/api_key = $api_key/' \
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${agent_conf_file}"
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test -n "${amplify_imagename}" && \
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echo " ---> using imagename = ${amplify_imagename}" && \
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sh -c "sed -i.old -e 's/imagename.*$/imagename = $amplify_imagename/' \
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${agent_conf_file}"
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test -f "${agent_conf_file}" && \
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chmod 644 ${agent_conf_file} && \
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chown nginx ${agent_conf_file} > /dev/null 2>&1
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test -f "${nginx_status_conf}" && \
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chmod 644 ${nginx_status_conf} && \
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chown nginx ${nginx_status_conf} > /dev/null 2>&1
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fi
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if ! grep '^api_key.*=[ ]*[[:alnum:]].*' ${agent_conf_file} > /dev/null 2>&1;
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then
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echo "no api_key found in ${agent_conf_file}! Skipping amplify agent."
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else
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echo "starting amplify-agent ..."
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service amplify-agent start > /dev/null 2>&1 < /dev/null
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if [ $? != 0 ]; then
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echo "couldn't start the agent, please check ${agent_log_file}"
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exit 1
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fi
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fi
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wait ${nginx_pid}
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echo "nginx master process has stopped, exiting."
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