mirror of
https://github.com/hanzoai/volume.git
synced 2026-10-01 00:48:00 +00:00
zeekay
b61441f7d7
A fork of Rancher's local-path-provisioner at v0.0.36. The behaviour is unchanged and deliberately so — a directory on the node a pod lands on is the right thing for a disk. What changes is identity. The provisioner answers to hanzo.ai/volume rather than rancher.io/local-path. That is not branding: two provisioners sharing one name race for the same claims, and a stock k3s carries the upstream one, so a cluster running both would settle our storage by chance. Data lives at /var/lib/hanzo/volume, so reading a Hanzo cluster does not mean learning another vendor's directory. Apache-2.0 as published, unaltered, with Rancher's attribution in NOTICE. The README says what this is not: durability. A volume here dies with its node. That is hanzoai/replicate's question, one layer up, and keeping the two apart is what lets the disk stay this simple.
64 lines
2.1 KiB
Go
64 lines
2.1 KiB
Go
// Copyright 2020 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build !windows
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// +build !windows
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package procfs
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import (
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"os"
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"github.com/prometheus/procfs/internal/util"
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)
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// KernelRandom contains information about to the kernel's random number generator.
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type KernelRandom struct {
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// EntropyAvaliable gives the available entropy, in bits.
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EntropyAvaliable *uint64
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// PoolSize gives the size of the entropy pool, in bits.
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PoolSize *uint64
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// URandomMinReseedSeconds is the number of seconds after which the DRNG will be reseeded.
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URandomMinReseedSeconds *uint64
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// WriteWakeupThreshold the number of bits of entropy below which we wake up processes
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// that do a select(2) or poll(2) for write access to /dev/random.
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WriteWakeupThreshold *uint64
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// ReadWakeupThreshold is the number of bits of entropy required for waking up processes that sleep
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// waiting for entropy from /dev/random.
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ReadWakeupThreshold *uint64
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}
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// KernelRandom returns values from /proc/sys/kernel/random.
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func (fs FS) KernelRandom() (KernelRandom, error) {
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random := KernelRandom{}
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for file, p := range map[string]**uint64{
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"entropy_avail": &random.EntropyAvaliable,
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"poolsize": &random.PoolSize,
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"urandom_min_reseed_secs": &random.URandomMinReseedSeconds,
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"write_wakeup_threshold": &random.WriteWakeupThreshold,
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"read_wakeup_threshold": &random.ReadWakeupThreshold,
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} {
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val, err := util.ReadUintFromFile(fs.proc.Path("sys", "kernel", "random", file))
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if os.IsNotExist(err) {
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continue
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}
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if err != nil {
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return random, err
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}
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*p = &val
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}
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return random, nil
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}
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