82 lines
2.6 KiB
Bash
Executable File
82 lines
2.6 KiB
Bash
Executable File
#!/bin/bash
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#
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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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set -ex
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function net_default_iface {
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sudo ip -4 route list 0/0 | awk '{ print $5; exit }'
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}
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function net_default_host_addr {
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sudo ip addr | awk "/inet / && /$(net_default_iface)/{print \$2; exit }"
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}
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function net_default_host_ip {
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echo $(net_default_host_addr) | awk -F '/' '{ print $1; exit }'
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}
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function net_hosts_pre_kube {
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sudo cp -f /etc/hosts /etc/hosts-pre-kube
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sudo sed -i "/$(hostname)/d" /etc/hosts
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sudo sed -i "/127.0.0.1/d" /etc/hosts
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sudo sed -i "1 i 127.0.0.1 localhost" /etc/hosts
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host_ip=$(net_default_host_ip)
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echo "${host_ip} $(hostname)" | sudo tee -a /etc/hosts
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}
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function create_k8s_screen {
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# Starts a proxy to the Kubernetes API server in a screen session
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sudo screen -S kube_proxy -X quit || true
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sudo screen -dmS kube_proxy && sudo screen -S kube_proxy -X screen -t kube_proxy
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sudo screen -S kube_proxy -p kube_proxy -X stuff 'kubectl proxy --accept-hosts=".*" --address="0.0.0.0"\n'
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}
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function tweak_etcd {
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ETCD_VER=v3.2.0
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TMP_DIR=/tmp/etcd
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sudo rm -rf $TMP_DIR && mkdir -p $TMP_DIR
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curl -L https://github.com/coreos/etcd/releases/download/${ETCD_VER}/etcd-${ETCD_VER}-linux-amd64.tar.gz \
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-o /tmp/etcd-${ETCD_VER}-linux-amd64.tar.gz
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tar xzvf /tmp/etcd-${ETCD_VER}-linux-amd64.tar.gz -C $TMP_DIR --strip-components=1
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# Stop etcd service installed by apt
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sudo systemctl stop etcd
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cp $TMP_DIR/etcd /usr/bin/etcd
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cp $TMP_DIR/etcdctl /usr/bin/etcdctl
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sudo systemctl start etcd
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}
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sudo apt-get update -y
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sudo apt-get install -y --no-install-recommends -qq \
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docker.io \
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jq \
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screen \
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etcd
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net_hosts_pre_kube
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curl -sSO https://cdn.rawgit.com/Mirantis/kubeadm-dind-cluster/master/fixed/dind-cluster-v1.8.sh
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sudo chmod +x dind-cluster-v1.8.sh
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sudo ./dind-cluster-v1.8.sh clean || true
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sudo ./dind-cluster-v1.8.sh up
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echo 'export PATH="$HOME/.kubeadm-dind-cluster:$PATH"' >> $HOME/.bashrc
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# Treak etcd service, the default etcd version installed by apt is v2, we need
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# v3 instead.
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tweak_etcd
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# Starts a proxy to the Kubernetes API server in a screen session
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create_k8s_screen
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