feat(helm): support custom vm.args via RELEASE_VM_ARGS#3735
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Adds an opt-in `vmArgs` value rendered into a ConfigMap, mounted at /etc/logflare/vm.args, and wired via RELEASE_VM_ARGS. Defaults to a set including `+Q 1048576`, which caps the BEAM's preallocated port table — needed on Kubernetes, where containerd runs pods with nofile=infinity and the VM would otherwise size the table from that (~2GB RSS at boot). Mounted with subPath so it coexists with the cert-files mount under /etc/logflare. A checksum/vm-args pod annotation rolls the Deployment when the args change. Set vmArgs to "" to fall back to the image's baked-in vm.args. Adds helm-unittest coverage.
Ziinc
approved these changes
Jul 24, 2026
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Stacked on
feat/helm(#3719). Adds custom Erlang VM args support to the chart — gap found comparing against Chase'slogflare-k8s/initsetup ino11y-team-tools.Why
Chase's setup sets
RELEASE_VM_ARGSwith+Q 1048576, and flags that on Kubernetes it's effectively required: containerd commonly runs pods withnofile=infinity, and without+Qthe BEAM sizes its preallocated port table from that limit → ~2GB RSS at boot.What
vmArgsvalue (default includes+Q 1048576). When set, it's rendered into a{{fullname}}-vm-argsConfigMap, mounted at/etc/logflare/vm.args(subPath, so it coexists with the cert-files mount under/etc/logflare), and wired viaRELEASE_VM_ARGS. SetvmArgs: ""to use the image's baked-in args.checksum/vm-argspod annotation rolls the Deployment when the args change.RELEASE_VM_ARGS, mount).