147 lines
4.0 KiB
Bash
Executable File
147 lines
4.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Setup a local k8s minikube cluster
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# with k8s dashboard and flux
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#
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set -o pipefail
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PRJ="flux"
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readonly PRJ
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USE_TF=0
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readonly USE_TF
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GITEA_HOSTNAME="git.e2m.io"
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readonly GITEA_HOSTNAME
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GITEA_USER="flux-user"
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readonly GITEA_USER
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FLUX_VERSION="2.2.1"
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readonly FLUX_VERSION
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FLUX_CHECKSUM="466756ca6b3437d30a6a5fb58e60f3e5a82d8291f3869cfc55b6f041962601b5"
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readonly FLUX_CHECKSUM
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FLUX_ARCHIVE_LINUX="flux_${FLUX_VERSION}_linux_amd64.tar.gz"
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readonly FLUX_ARCHIVE_LINUX
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FLUX_ARCHIVE_MACOS="flux_${FLUX_VERSION}_darwin_arm64.tar.gz"
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readonly FLUX_ARCHIVE_MACOS
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FLUX_URL_LINUX="https://github.com/fluxcd/flux2/releases/download/v${FLUX_VERSION}/${FLUX_ARCHIVE_LINUX}"
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readonly FLUX_URL_LINUX
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FLUX_URL_MACOS="https://github.com/fluxcd/flux2/releases/download/v${FLUX_VERSION}/${FLUX_ARCHIVE_MACOS}"
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readonly FLUX_URL_MACOS
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FLUX_FORCE_LOCAL=1
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readonly FLUX_FORCE_LOCAL
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TF_VERSION="1.6.6"
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readonly TF_VERSION
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TF_ARCHIVE_LINUX="terraform_${TF_VERSION}_linux_amd64.zip"
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readonly TF_ARCHIVE_LINUX
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TF_ARCHIVE_MACOS="terraform_${TF_VERSION}_darwin_arm64.zip"
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readonly TF_ARCHIVE_MACOS
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TF_CHECKSUM=""
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readonly TF_CHECKSUM
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TF_FORCE_LOCAL=1
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readonly TF_FORCE_LOCAL
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OS="Linux"
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VERBOSE=0
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readonly VERBOSE
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minikube_driver="podman"
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if [[ $(uname) == "Darwin" ]]; then
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OS="macos"
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elif [[ $(grep '^ID=' /etc/os-release | awk -F'=' '{print $2}') == "ubuntu" ]]; then
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OS="ubuntu"
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fi
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printf "Running on ${OS}\n"
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if [[ "$OS" = "macos" ]]; then
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FLUX_URL="${FLUX_URL_MACOS}"
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FLUX_ARCHIVE="${FLUX_ARCHIVE_MACOS}"
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TF_ARCHIVE="${TF_ARCHIVE_MACOS}"
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TF_URL="https://releases.hashicorp.com/terraform/${TF_VERSION}/${TF_ARCHIVE}"
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else
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FLUX_URL="${FLUX_URL_LINUX}"
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FLUX_ARCHIVE="${FLUX_ARCHIVE_LINUX}"
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TF_ARCHIVE="${TF_ARCHIVE_LINUX}"
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TF_URL="https://releases.hashicorp.com/terraform/${TF_VERSION}/${TF_ARCHIVE}"
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fi
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# We prefer podman but Ubuntu's podman is too old
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if [[ ${OS} = "ubuntu" ]]; then
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minikube_driver="docker"
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fi
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# Start minikube
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if ! $(minikube status | grep Nonexistent\|Stopped); then
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printf 'minikube is not running\nStarting minikube..\n'
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# Increase memory from default 2G
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podman machine set --memory=4096
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podman machine start
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minikube config set memory 3800
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if [[ 0 == "${VERBOSE}" ]]; then
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minikube start --driver="${minikube_driver}"
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else
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minikube start --driver="${minikube_driver}" --alsologtostderr -v=7
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fi
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else
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printf 'minikube is already running\n'
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fi
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# Check cluster availability
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# TODO: Check for errors
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kubectl cluster-info
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# Deploy k8s dashboard
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if [[ $(kubectl get pods -A -o wide | grep kubernetes-dashboard | grep Running) ]]; then
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printf "Installing k8s dashboard\n"
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# The metrics server collides with kube-prometheus-stack
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#minikube addons enable metrics-server
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minikube dashboard &
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else
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printf 'k8s dashboard is already running\n'
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fi
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# Install terraform if local version enforced
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if [[ "$TF_FORCE_LOCAL" = 1 ]]; then
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if [[ -e "$TF_ARCHIVE}" ]]; then
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printf "terraform binary exists\n"
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else
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printf "Fetching terraform archive..\n"
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curl -LO "${TF_URL}"
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unzip -n "${TF_ARCHIVE}"
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fi
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TF_CMD="./terraform"
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else
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TF_CMD="terraform"
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fi
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# Install flux if local version enforced
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if [[ "$FLUX_FORCE_LOCAL" = 1 ]]; then
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printf "Fetching flux archive..\n"
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curl -LO "${FLUX_URL}"
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tar xf "${FLUX_ARCHIVE}"
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FLUX_CMD="./flux"
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else
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FLUX_CMD="flux"
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fi
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# Deploy Flux Controllers
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# Needs cluster admin privileges
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if [[ $(${FLUX_CMD} get helmreleases --all-namespaces) ]]; then
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printf 'Flux controllers are running\n'
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fi
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# 'flux bootstrap' is idempotent
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# We use the Gitea integration with a PAT
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# that needs to be supplied to create and write to
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# Gitea fluxcd owned repositories
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printf 'Installing Flux controller\n'
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${FLUX_CMD} bootstrap gitea \
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--hostname="$GITEA_HOSTNAME" \
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--token-auth \
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--owner="$GITEA_USER" \
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--repository="$PRJ"-deploy \
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--branch=main \
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--path=clusters/dev \
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--personal \
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--read-write-key=true \
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--private=false
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