Lightweight Kubernetes
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#!/bin/bash
GO=${GO-go}
ARCH=${ARCH:-$("${GO}" env GOARCH)}
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
# We're building k3s against containerd 1.5 in go.mod because 1.6 has dependency
# conflicts with Kubernetes, but we still need to bundle containerd 1.6.
VERSION_CONTAINERD="v1.6.14-k3s1"
VERSION_CRICTL=$(grep github.com/kubernetes-sigs/cri-tools go.mod | head -n1 | awk '{print $4}')
if [ -z "$VERSION_CRICTL" ]; then
VERSION_CRICTL="v0.0.0"
fi
VERSION_K8S_K3S=$(grep 'k8s.io/kubernetes =>' go.mod | head -n1 | awk '{print $4}')
VERSION_K8S=${VERSION_K8S_K3S%"-k3s1"}
if [ -z "$VERSION_K8S" ]; then
VERSION_K8S="v0.0.0"
fi
VERSION_RUNC=$(grep github.com/opencontainers/runc go.mod | head -n1 | awk '{print $4}')
if [ -z "$VERSION_RUNC" ]; then
VERSION_RUNC="v0.0.0"
fi
VERSION_FLANNEL=$(grep github.com/flannel-io/flannel go.mod | head -n1 | awk '{print $2}')
if [ -z "$VERSION_FLANNEL" ]; then
VERSION_FLANNEL="v0.0.0"
fi
VERSION_CNIPLUGINS="v1.1.1-k3s1"
VERSION_KUBE_ROUTER=$(grep github.com/k3s-io/kube-router go.mod | head -n1 | awk '{print $4}')
if [ -z "$VERSION_KUBE_ROUTER" ]; then
VERSION_KUBE_ROUTER="v0.0.0"
fi
VERSION_ROOT="v0.12.1"
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")"