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73dd38a5ce
Why I did it Part implementation of dhcp_server. HLD: sonic-net/SONiC#1282. Add dhcpservd to dhcp_server container. How I did it Add installing required pkg (psutil) in Dockerfile. Add copying required file to container in Dockerfile (kea-dhcp related and dhcpservd related) Add critical_process and supervisor config. Add support for generating kea config (only in dhcpservd.py) and updating lease table (in dhcpservd.py and lease_update.sh) How to verify it Build image with setting INCLUDE_DHCP_SERVER to y and enabled dhcp_server feature after installed image, container start as expected. Enter container and found that all processes defined in supervisor configuration running as expected. Kill processes defined in critical_processes, container exist.
13 lines
481 B
Bash
13 lines
481 B
Bash
#!/bin/bash
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# This script would run once kea-dhcp4 lease change (defined in kea-dhcp4.conf),
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# it is to find running process dhcpservd.py, and send SIGUSR1 signal to this
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# process to inform it to update lease table in state_db (defined in dhcpservd.py)
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pid=`ps aux | grep 'dhcpservd' | grep -nv 'grep' | awk '{print $2}'`
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if [ -z "$pid" ]; then
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logger -p daemon.error Cannot find running dhcpservd.py.
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else
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# Send SIGUSR1 signal to dhcpservd.py
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kill -s 10 ${pid}
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fi
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