Tony Hsu gosharplite

下載 cli。

$ wget -O oklog https://github.com/oklog/oklog/releases/download/v0.2.2/oklog-0.2.2-linux-amd64
$ sudo chmod +x oklog

看看搜尋的用法。

$ ./oklog query -h

Why context.Value matters and how to improve it

Image tag	days	cephfs
v0.4.0-231-g70782ea	11 days ago	OK
v0.4.0-238-g2c7fca3	6 days ago	OK
v0.4.0-249-g6fa9278	5 days ago	OK
v0.4.0-277-g28b2cfd	3 days ago	Not working
master	2 hours ago	Not working

Events:
  FirstSeen     LastSeen        Count   From                    SubObjectPath   Type            Reason                  Message
  ---------     --------        -----   ----                    -------------   --------        ------                  -------
  43m           43m             1       default-scheduler                       Normal          Scheduled               Successfully assigned tony-droifs-vdvb7 to 10.128.112.26
  43m           43m             1       kubelet, 10.128.112.26                  Normal          SuccessfulMountVolume   MountVolume.SetUp succeeded for volume "default-token-72gvb" 
  42m           1m              19      kubelet, 10.128.112.26                  Warning         FailedMount             MountVolume.SetUp failed for volume "droi-store" : CephFS: mount failed: mount failed: exit status 32
Mounting command: mount
Mounting arguments: 10.2.21.19:6790,10.2.19.219:6790,10.2.18.254:6790:/ /var/lib/kubelet/pods/7e7ca875-7b56-11e7-b478-901b0e60defe/volumes/kubernetes.i

CoreUpdate

Useful commands

/etc/coreos/update.conf

GROUP=stable
SERVER=http://matchbox.foo:8080/assets/coreos_update/1353.8.0/

	apiVersion: apps/v1
	kind: DaemonSet
	metadata:
	name: demo
	spec:
	selector:
	matchLabels:
	name: demo
	template:
	metadata:

	# Build the manager binary
	FROM golang:1.13 as builder

	WORKDIR /workspace
	# Copy the Go Modules manifests
	COPY go.mod go.mod
	COPY go.sum go.sum

	# Make go mod works with private gilab
	RUN git config --global http.sslVerify false

	---
	kind: Service
	apiVersion: v1
	metadata:
	name: oklog
	labels:
	app: oklog
	spec:
	ports:
	- name: api

	https://github.com/coreos/etcd/issues/8214
	https://github.com/coreos/etcd/issues/8214#issuecomment-317934559
	https://github.com/coreos/etcd/issues/8293
	https://github.com/coreos/etcd/issues/8305#issuecomment-319166589
	https://github.com/coreos/etcd/issues/8305
	https://github.com/kubernetes/kubernetes/issues/48865
	https://github.com/coreos/etcd/pull/8351
	https://github.com/coreos/etcd/issues/8348