开发 Tips（19）

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# Switch Kubernetes Cluster
function switch_kubeconfig(){
   sudo sed -i "" "/$2/d" /etc/hosts
   sudo echo "$1 $2" >> /etc/hosts

   if test -f ~/.ssh/known_hosts; then
     sed -i "" '/kubernetes.default/d'  ~/.ssh/known_hosts
   fi
   sshpass  -p "your_password" ssh -o StrictHostKeyChecking=no [email protected]$1 "cat /etc/kubernetes/admin.conf" > ~/.kube/config
}
function on_dev1(){
   switch_kubeconfig 10.10.10.11 kubernetes.default
}

git pull

xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools),
missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun

xcode-select --install

sudo xcode-select --reset

FROM golang:1.12 as controller-manager-builder

COPY / /go/src/myapp
WORKDIR /go/src/myapp

RUN CGO_ENABLED=0 GO111MODULE=on GOOS=linux GOARCH=amd64 GOFLAGS=-mod=vendor go build --ldflags "-extldflags -static" -o controller-manager ./cmd/controller-manager/

FROM alpine:3.7
RUN apk add --update ca-certificates && update-ca-certificates
COPY --from=controller-manager-builder /go/src/myapp/controller-manager /usr/local/bin/
CMD controller-manager

  Containers:
    - name: sidecar
      image: busybox:1.28.4
      command:
        - sleep
        - "3600"
      imagePullPolicy: IfNotPresent
      resources: {}
      terminationMessagePath: /dev/termination-log
      terminationMessagePolicy: File
      volumeMounts:
        - name: db-persistent-storage
          mountPath: /var/lib/mysql

kubectl exec -it {POD_NAME}  -c sidecar sh

strings /lib64/libc.so.6 |grep GLIBC_*

GLIBC_2.2.5
GLIBC_2.2.6
GLIBC_2.3
GLIBC_2.3.2
GLIBC_2.3.3
GLIBC_2.3.4
GLIBC_2.4
GLIBC_2.5
GLIBC_2.6
GLIBC_2.7
GLIBC_2.8
GLIBC_2.9
GLIBC_2.10
GLIBC_2.11
GLIBC_2.12
GLIBC_2.13
GLIBC_2.14
GLIBC_2.15
GLIBC_2.16
GLIBC_2.17

wget http://ftp.gnu.org/gnu/glibc/glibc-2.XX.tar.gz
tar -xvf glibc-2.18.tar.gz
cd glibc-2.18
mkdir build && cd build
../configure --prefix=/usr
make -j4
make install