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https://github.com/BretFisher/shpod.git
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This commit is contained in:
Jerome Petazzoni
60
Dockerfile
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FROM alpine
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ENV \
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COMPOSE_VERSION=1.24.1 \
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HELM_VERSION=3.0.0-rc.1 \
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KUBECTL_VERSION=1.16.2 \
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SHIP_VERSION=0.40.0 \
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STERN_VERSION=1.11.0
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## Alpine base ##
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ENV COMPLETIONS=/usr/share/bash-completion/completions
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RUN apk add bash bash-completion curl git jq libintl ncurses tmux vim
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RUN sed -i s,/bin/ash,/bin/bash, /etc/passwd
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## Ubuntu base ##
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#ENV COMPLETIONS=/etc/bash_completion.d
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#RUN apt-get update \
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# && apt-get install -y curl git jq vim
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## Install a bunch of binaries
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RUN curl -L -o /usr/local/bin/docker-compose https://github.com/docker/compose/releases/download/${COMPOSE_VERSION}/docker-compose-Linux-x86_64 \
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&& chmod +x /usr/local/bin/docker-compose
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RUN curl -L -o /usr/local/bin/kubectl https://storage.googleapis.com/kubernetes-release/release/v${KUBECTL_VERSION}/bin/linux/amd64/kubectl \
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&& chmod +x /usr/local/bin/kubectl
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RUN kubectl completion bash > $COMPLETIONS/kubectl.bash
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RUN curl -L -o /usr/local/bin/stern https://github.com/wercker/stern/releases/download/${STERN_VERSION}/stern_linux_amd64 \
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&& chmod +x /usr/local/bin/stern
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RUN stern --completion bash > $COMPLETIONS/stern.bash
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RUN curl -L https://get.helm.sh/helm-v${HELM_VERSION}-linux-amd64.tar.gz \
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| tar zx -C /usr/local/bin --strip-components=1 linux-amd64/helm
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RUN helm completion bash > $COMPLETIONS/helm.bash
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RUN curl -L https://github.com/replicatedhq/ship/releases/download/v${SHIP_VERSION}/ship_${SHIP_VERSION}_linux_amd64.tar.gz \
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| tar zx -C /usr/local/bin ship
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# This is embarrassing, but I can't get httping to compile correctly with musl.
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# It reports negative times. So, I found this random binary here. Shrug.
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RUN curl -L https://github.com/static-linux/static-binaries-i386/raw/4266c69990ae11315bad7b928f85b6c8e605ef14/httping-2.4.tar.gz \
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| tar zx -C /usr/local/bin --strip-components=1 httping-2.4/httping
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RUN cd /tmp \
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&& git clone https://github.com/ahmetb/kubectx \
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&& cd kubectx \
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&& mv kubectx /usr/local/bin/kctx \
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&& mv kubens /usr/local/bin/kns \
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&& mv completion/*.bash $COMPLETIONS \
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&& cd .. \
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&& rm -rf kubectx
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RUN cd /tmp \
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&& git clone https://github.com/jonmosco/kube-ps1 \
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&& cp kube-ps1/kube-ps1.sh /etc/profile.d/ \
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&& rm -rf kube-ps1
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RUN kubectl config set-context kubernetes --namespace=default \
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&& kubectl config use-context kubernetes
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WORKDIR /root
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RUN echo trap exit TERM > /etc/profile.d/trapterm.sh
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RUN sed -i "s/export PS1=/#export PS1=/" /etc/profile
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ENV \
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HOSTIP="0.0.0.0" \
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KUBE_PS1_PREFIX="" \
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KUBE_PS1_SUFFIX="" \
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KUBE_PS1_SYMBOL_ENABLE="false" \
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KUBE_PS1_CTX_COLOR="green" \
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KUBE_PS1_NS_COLOR="green" \
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PS1="\e[1m\e[31m[\$HOSTIP] \e[32m(\$(kube_ps1)) \e[34m\u@\h\e[35m \w\e[0m\n$ "
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ENTRYPOINT ["bash", "-l"]
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56
README.md
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README.md
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# shpod
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`shpod` is a container image based on the Alpine distribution
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and embarking a bunch of tools useful when working with Kubernetes:
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- kubectl
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- helm
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- ship
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- kubectx + kubens
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- kube-ps1
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- stern
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- compose
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It also includes tmux, a custom prompt, and completion for
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all of the above.
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Its goal is to provide a normalized environment, to go
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with the training materials at https://container.training/,
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so that you can get all the tools you need regardless
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of your exact Kubernetes setup.
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To use it:
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1. Get a Kubernetes cluster. You can use Minikube, microk8s,
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Docker Desktop, AKS, EKS, GKE, anything you like, really.
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2. Deploy the shpod pod:
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```
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kubectl apply -f https://raw.githubusercontent.com/jpetazzo/shpod/master/shpod.yaml
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```
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3. Attach to the shpod pod:
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```
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kubecth attach --namespace=shpod -ti shpod
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```
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4. Enjoy!
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To remove it, you can do a `kubectl delete` on that URL above.
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You can also delete the namespace `shpod` and the ClusterRoleBinding
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with the same name:
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```
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kubectl delete clusterrolebinding,ns shpod
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```
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## Internal details
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This repository (https://github.com/jpetazzo/shpod) is linked
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to a Docker Hub repository (https://hub.docker.com/r/jpetazzo/shpod).
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The YAML file is a Kubernetes manifest for a Pod, a ServiceAccount,
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a ClusterRoleBinding, and a Namespace to hold the Pod and ServiceAccount.
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42
shpod.yaml
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42
shpod.yaml
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apiVersion: v1
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kind: Namespace
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metadata:
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name: shpod
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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: shpod
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namespace: shpod
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: shpod
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: cluster-admin
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subjects:
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- kind: ServiceAccount
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name: shpod
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namespace: shpod
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---
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apiVersion: v1
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kind: Pod
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metadata:
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name: shpod
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namespace: shpod
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spec:
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serviceAccountName: shpod
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containers:
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- name: shpod
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image: jpetazzo/shpod
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imagePullPolicy: IfNotPresent
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stdin: true
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tty: true
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env:
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- name: HOSTIP
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valueFrom:
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fieldRef:
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fieldPath: status.hostIP
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