117 lines
3.7 KiB
Bash
Executable File
117 lines
3.7 KiB
Bash
Executable File
#!/bin/bash
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export USER=$1
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export SERVER=$2
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export CERT_DIR=$HOME/.kube/$SERVER/users/$USER
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export CA_CERT_DIR=$HOME/.kube/$SERVER
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export SERVER_USER_DIR="~/.kube/users/$USER"
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if [ -z $USER ]; then
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echo "No arguments supplied! Format is ./adduser.sh <USER> <SERVER_FQDN>"
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exit 1
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fi
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if [ -z $SERVER ]; then
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echo "No server supplied for user $USER"
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exit 1
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fi
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if [ $USER = "admin" ]; then
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echo "Creating admin user for server $SERVER"
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fi
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echo "Creating cert dir"
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mkdir -p $CERT_DIR
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if [ $? -ne 0 ]; then
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echo "Couldn't create cert dir at $CERT_DIR"
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exit 1
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fi
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echo "Generating openssl cert"
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docker run -it -v $CERT_DIR:/$USER python:latest openssl genrsa -out /$USER/$USER.key 2048
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if [ $USER = "admin" ]; then
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docker run -it -v $CERT_DIR:/$USER python:latest openssl req -new -key /$USER/$USER.key -out /$USER/$USER.csr -subj "/CN=$USER/O=system:masters"
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else
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docker run -it -v $CERT_DIR:/$USER python:latest openssl req -new -key /$USER/$USER.key -out /$USER/$USER.csr -subj "/CN=$USER/O=user"
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fi
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# /CN=admin/O=manager
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if [ $? -ne 0 ]; then
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echo "Couldn't create cert with Docker. Are you sure it's running?"
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exit 1
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fi
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echo "Creating namespace dir on server"
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ssh $SERVER "mkdir -p $SERVER_USER_DIR"
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echo "Copying client csr to server cert dir"
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scp $CERT_DIR/$USER.csr $SERVER:$SERVER_USER_DIR/$USER.csr
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if [ $? -ne 0 ]; then
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echo "Failed to copy client csr to server cert dir"
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exit 1
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fi
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echo "Getting cert signing pod"
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export CERT_POD=$(ssh $SERVER "kubectl get pod -n kube-system --selector=app=certsigner --output=jsonpath={.items..metadata.name}")
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if [ -z $CERT_POD ]; then
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echo "Installing certsigner"
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helm template certsigner ./certsigner | ssh $SERVER "sudo -E kubectl apply -f -"
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fi
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while [ -z $CERT_POD ]; do
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echo "Getting cert signing pod"
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export CERT_POD=$(ssh $SERVER "kubectl get pod -n kube-system --selector=app=certsigner --output=jsonpath={.items..metadata.name}")
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sleep 2
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done
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if [ $? -ne 0 ]; then
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echo "Failed to install certsigner."
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fi
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echo "Signing cert with pod $CERT_POD"
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ssh $SERVER "kubectl -n kube-system cp $SERVER_USER_DIR/$USER.csr $CERT_POD:/certs/$USER.csr"
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ssh $SERVER "kubectl -n kube-system exec $CERT_POD -- openssl x509 -in /certs/$USER.csr -req -CA /keys/client-ca.crt -CAkey /keys/client-ca.key -set_serial $(python -c 'import random; print(random.randint(1000000000, 9999999999))') -out /certs/$USER.crt -days 5000"
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ssh $SERVER "kubectl -n kube-system cp $CERT_POD:/certs/$USER.crt ~/.kube/users/$USER/$USER.crt"
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echo "retrieving signed cert"
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scp $SERVER:$SERVER_USER_DIR/$USER.crt $CERT_DIR/$USER.crt
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echo "retrieving server ca"
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wget --no-check-certificate https://$SERVER:6443/cacerts -O $CA_CERT_DIR/server-ca.pem
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echo "adding server to config with new context $SERVER-$USER"
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kubectl config set-cluster $SERVER --server=https://$SERVER:6443 --certificate-authority=$CA_CERT_DIR/server-ca.pem
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kubectl config set-credentials $USER-$SERVER --client-certificate=$CERT_DIR/$USER.crt --client-key=$CERT_DIR/$USER.key
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if [ $USER = "admin" ]; then
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kubectl config set-context $SERVER-$USER --cluster=$SERVER --namespace=kube-system --user=$USER-$SERVER
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else
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kubectl config set-context $SERVER-$USER --cluster=$SERVER --namespace=$USER --user=$USER-$SERVER
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fi
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kubectl config set current-context $SERVER-$USER
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if [ $USER = "admin" ]; then
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echo "Admin user created, skipping namespace"
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exit 0
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fi
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echo "Templating namespace with helm and copying to server"
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helm template $USER --set user=$USER ./namespace | ssh $SERVER "cat - > $SERVER_USER_DIR/namespace.yaml"
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if [ $? -ne 0 ]; then
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echo "Failed to template namespace. Is helm installed?"
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exit 1
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fi
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echo "Creating namespace from template"
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ssh $SERVER "kubectl apply -f $SERVER_USER_DIR/namespace.yaml"
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if [ $? -ne 0 ]; then
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echo "Failed to create namespace"
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exit 1
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fi
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