Lightweight Kubernetes
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#!/bin/bash
GO=${GO-go}
ARCH=${ARCH:-$("${GO}" env GOARCH)}
OS=${OS:-$("${GO}" env GOOS)}
SUFFIX="-${ARCH}"
GIT_TAG=$DRONE_TAG
TREE_STATE=clean
COMMIT=$DRONE_COMMIT
if [ -d .git ]; then
if [ -z "$GIT_TAG" ]; then
GIT_TAG=$(git tag -l --contains HEAD | head -n 1)
fi
if [ -n "$(git status --porcelain --untracked-files=no)" ]; then
DIRTY="-dirty"
TREE_STATE=dirty
fi
COMMIT=$(git log -n3 --pretty=format:"%H %ae" | grep -v ' drone@localhost$' | cut -f1 -d\ | head -1)
if [ -z "${COMMIT}" ]; then
COMMIT=$(git rev-parse HEAD || true)
fi
fi
get-module-version(){
go list -m -f '{{if .Replace}}{{.Replace.Version}}{{else}}{{.Version}}{{end}}' $1
}
get-module-path(){
go list -m -f '{{if .Replace}}{{.Replace.Path}}{{else}}{{.Path}}{{end}}' $1
}
PKG_CONTAINERD_K3S=$(get-module-path github.com/containerd/containerd)
VERSION_CONTAINERD=$(get-module-version github.com/containerd/containerd)
if [ -z "$VERSION_CONTAINERD" ]; then
VERSION_CONTAINERD="v0.0.0"
fi
VERSION_CRICTL=$(get-module-version sigs.k8s.io/cri-tools)
if [ -z "$VERSION_CRICTL" ]; then
VERSION_CRICTL="v0.0.0"
fi
VERSION_K8S_K3S=$(get-module-version k8s.io/kubernetes)
VERSION_K8S=${VERSION_K8S_K3S%-k3s*}
if [ -z "$VERSION_K8S" ]; then
VERSION_K8S="v0.0.0"
fi
VERSION_RUNC=$(get-module-version github.com/opencontainers/runc)
if [ -z "$VERSION_RUNC" ]; then
VERSION_RUNC="v0.0.0"
fi
VERSION_HCSSHIM=$(get-module-version github.com/Microsoft/hcsshim)
if [ -z "$VERSION_HCSSHIM" ]; then
VERSION_HCSSHIM="v0.0.0"
fi
VERSION_FLANNEL=$(get-module-version github.com/flannel-io/flannel)
if [ -z "$VERSION_FLANNEL" ]; then
VERSION_FLANNEL="v0.0.0"
fi
VERSION_CRI_DOCKERD=$(get-module-version github.com/Mirantis/cri-dockerd)
if [ -z "$VERSION_CRI_DOCKERD" ]; then
VERSION_CRI_DOCKERD="v0.0.0"
fi
VERSION_CNIPLUGINS="v1.6.0-k3s1"
VERSION_FLANNEL_PLUGIN="v1.6.0-flannel1"
VERSION_KUBE_ROUTER=$(get-module-version github.com/cloudnativelabs/kube-router/v2)
if [ -z "$VERSION_KUBE_ROUTER" ]; then
VERSION_KUBE_ROUTER="v0.0.0"
fi
VERSION_ROOT="v0.14.1"
DEPENDENCIES_URL="https://raw.githubusercontent.com/kubernetes/kubernetes/${VERSION_K8S}/build/dependencies.yaml"
VERSION_GOLANG="go"$(curl -sL "${DEPENDENCIES_URL}" | yq e '.dependencies[] | select(.name == "golang: upstream version").version' -)
if [[ -n "$GIT_TAG" ]]; then
if [[ ! "$GIT_TAG" =~ ^"$VERSION_K8S"[+-] ]]; then
echo "Tagged version '$GIT_TAG' does not match expected version '$VERSION_K8S[+-]*'" >&2
exit 1
fi
VERSION=$GIT_TAG
else
VERSION="$VERSION_K8S+k3s-${COMMIT:0:8}$DIRTY"
fi
VERSION_TAG="$(sed -e 's/+/-/g' <<< "$VERSION")"
BINARY_POSTFIX=
if [ ${OS} = windows ]; then
BINARY_POSTFIX=.exe
fi