121 lines
3.5 KiB
Bash
Executable File
121 lines
3.5 KiB
Bash
Executable File
#!/bin/bash
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set -euo pipefail
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#
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# This script downloads and installs development dependencies required for
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# bridge development on Linux.
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#
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# Tested on amd64 with CentOS 8, Debian 10 and Ubuntu 20.04. Likely works on other distros as well.
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#
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# We use this to set up our CI, but you might find it useful for your own development needs.
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#
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# This installer pulls in binaries from, and therefore trusts, a number of third-party sources:
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#
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# - k3s.io by Rancher Labs.
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# - Go binary distribution by Google.
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# - Tilt binary distribution by Tilt.
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#
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# Idempotent and safe to run multiple times for upgrades (but restarts your cluster).
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# Goes without saying, but this is NOT for production, or anywhere close to it.
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#
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# If you want to allow other users on the host access to the k3s cluster, look into
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# run the installer script with an appropriate K3S_KUBECONFIG_MODE.
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if [[ $EUID -ne 0 ]]; then
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echo "This script must be run as root"
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exit 1
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fi
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if ! docker info; then
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echo "Please install and configure Docker first"
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exit 1
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fi
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# On Ubuntu/Debian, switch to iptables-legacy
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# https://github.com/rancher/k3s/issues/1114
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if update-alternatives --set iptables /usr/sbin/iptables-legacy; then
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systemctl restart docker
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fi
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# Ensure that our binaries are not shadowed by the distribution.
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export PATH=/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/sbin:/bin
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# Install Go binaries.
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ARCH=amd64
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GO=1.15
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# TODO(leo): verify checksum
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(
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if [[ -d /usr/local/go ]]; then
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rm -rf /usr/local/go
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fi
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TMP=$(mktemp -d)
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(
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cd "$TMP"
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curl -OJ "https://dl.google.com/go/go${GO}.linux-${ARCH}.tar.gz"
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tar -C /usr/local -xzf "go${GO}.linux-${ARCH}.tar.gz"
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echo 'PATH=/usr/local/go/bin:$PATH' >/etc/profile.d/local_go.sh
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)
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rm -rf "$TMP"
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)
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. /etc/profile.d/local_go.sh
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# Install Tilt (latest stable release by Tilt). Install script looks fine.
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curl -fsSL https://raw.githubusercontent.com/tilt-dev/tilt/master/scripts/install.sh | bash
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# Install SELinux policies for k3s on CentOS/Fedora systems (ignored otherwise).
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if rpm -q libselinux-utils; then
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yum install -y container-selinux selinux-policy-base
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! rpm -i https://rpm.rancher.io/k3s-selinux-0.1.1-rc1.el7.noarch.rpm
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fi
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# Install k3s with sane defaults and make it use the local Docker daemon.
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curl -sfL https://get.k3s.io | INSTALL_K3S_VERSION="v1.18.6+k3s1" INSTALL_K3S_EXEC="server
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--disable-cloud-controller
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--kube-scheduler-arg=address=127.0.0.1
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--kube-controller-manager-arg=address=127.0.0.1
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--disable traefik
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--docker
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" sh -s -
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cat <<'EOF' > /etc/profile.d/k3s.sh
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alias kc=kubectl
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source <(kubectl completion bash)
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complete -F __start_kubectl kc
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function use-namespace {
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kubectl config set-context --current --namespace=$1
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}
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# Required for tilt to find the local cluster
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export KUBECONFIG=/etc/rancher/k3s/k3s.yaml
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EOF
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cat <<'EOF' > /etc/profile.d/buildkit.sh
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# Enable buildkit support in Docker for incremental builds
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export DOCKER_BUILDKIT=1
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EOF
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. /etc/profile.d/k3s.sh
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# Set default namespace to wormhole to make it easier to reset without deleting the cluster.
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kubectl create namespace wormhole
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use-namespace wormhole
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# Trick tilt into not pushing images by pretending to be docker-desktop
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# FIXME: https://github.com/tilt-dev/tilt/issues/3654
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sed -i 's/ name: default/ name: docker-desktop/g' $KUBECONFIG
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sed -i 's/current-context: default/current-context: docker-desktop/g' $KUBECONFIG
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sed -i 's/cluster: default/cluster: docker-desktop/g' $KUBECONFIG
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while ! k3s kubectl get all; do
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echo "Waiting for k3s..."
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systemctl status k3s.service
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sleep 5
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done
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