feat(env): Add automatic memory limit handling #3895
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Signed-off-by: dongjiang1989 <[email protected]>
Signed-off-by: dongjiang <[email protected]>
$ ./alertmanager --config.file=../../examples/ha/alertmanager.yml --enable-feature=auto-gomemlimit
ts=2024-06-27T10:37:22.613Z caller=main.go:192 level=info msg="Starting Alertmanager" version="(version=, branch=, revision=6658addc652de854f8d34988c7286093dceaec05-modified)"
ts=2024-06-27T10:37:22.613Z caller=main.go:193 level=info build_context="(go=go1.22.0, platform=darwin/amd64, user=, date=, tags=unknown)"
ts=2024-06-27T10:37:22.613Z caller=featurecontrol.go:131 level=warn msg="Automatically set to match the Linux container memory limit. If there is no container limit, or the process is running outside of containers, the system memory total is used."
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Enable automatic detection of memory limits and configure GOMEMLIMIT to match.Also includes a flag to allow controlling the reserved ratio.
ref: prometheus/prometheus#13395