Xiaoguang(William) Zhang 09fccd6b71 Update alertmanager image to v0.20.0 ...

Update alertmanager image from v0.11.0 to v0.20.0

Change-Id: I0ba14d1001a53964ebc28bc9ea9be999402d54fb

2020-07-09 14:24:28 -04:00

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_alertmanager.sh.tpl

Update alertmanager image to v0.20.0

2020-07-09 14:24:28 -04:00