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Add kubectl kubernetes client wrapper #1302

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Merged
merged 1 commit into from
Jan 31, 2023
Merged

Add kubectl kubernetes client wrapper #1302

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6 changes: 6 additions & 0 deletions Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,7 @@ binaries: clean \
_output/bin/apptainer.lima \
_output/bin/docker.lima \
_output/bin/podman.lima \
_output/bin/kubectl.lima \
_output/share/lima/lima-guestagent.Linux-x86_64 \
_output/share/lima/lima-guestagent.Linux-aarch64 \
_output/share/lima/lima-guestagent.Linux-riscv64
Expand Down Expand Up @@ -87,6 +88,10 @@ _output/bin/podman.lima: ./cmd/podman.lima
@mkdir -p _output/bin
cp -a $^ $@

_output/bin/kubectl.lima: ./cmd/kubectl.lima
@mkdir -p _output/bin
cp -a $^ $@

.PHONY: _output/bin/limactl$(exe)
_output/bin/limactl$(exe):
# The hostagent must be compiled with CGO_ENABLED=1 so that net.LookupIP() in the DNS server
Expand Down Expand Up @@ -132,6 +137,7 @@ uninstall:
"$(DEST)/bin/apptainer.lima" \
"$(DEST)/bin/docker.lima" \
"$(DEST)/bin/podman.lima" \
"$(DEST)/bin/kubectl.lima" \
"$(DEST)/share/lima" "$(DEST)/share/doc/lima"
if [ "$$(readlink "$(DEST)/bin/nerdctl")" = "nerdctl.lima" ]; then rm "$(DEST)/bin/nerdctl"; fi
if [ "$$(readlink "$(DEST)/bin/apptainer")" = "apptainer.lima" ]; then rm "$(DEST)/bin/apptainer"; fi
Expand Down
30 changes: 30 additions & 0 deletions cmd/kubectl.lima
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Original file line number Diff line number Diff line change
@@ -0,0 +1,30 @@
#!/bin/sh
set -eu
: "${LIMA_INSTANCE:=}"
: "${KUBECTL:=kubectl}"

if [ -z "$LIMA_INSTANCE" ]; then
if [ "$(limactl ls -f '{{.Status}}' k3s 2>/dev/null)" = "Running" ]; then
LIMA_INSTANCE=k3s
elif [ "$(limactl ls -f '{{.Status}}' k8s 2>/dev/null)" = "Running" ]; then
LIMA_INSTANCE=k8s
else
echo "No k3s or k8s running instances found. Either start one with" >&2
echo "limactl start --name=k3s template://k3s" >&2
echo "limactl start --name=k8s template://k8s" >&2
echo "or set LIMA_INSTANCE to the name of your Kubernetes instance" >&2
exit 1
fi
elif [ "$(limactl ls -q "$LIMA_INSTANCE" 2>/dev/null)" != "$LIMA_INSTANCE" ]; then
echo "instance \"$LIMA_INSTANCE\" does not exist, run \`limactl start --name=$LIMA_INSTANCE\` to create a new instance" >&2
exit 1
fi
KUBECTL=$(command -v "$KUBECTL" || true)
if [ -n "$KUBECTL" ]; then
KUBECONFIG=$(limactl list "$LIMA_INSTANCE" --format '{{.Dir}}/copied-from-guest/kubeconfig.yaml')
export KUBECONFIG
exec "$KUBECTL" "$@"
else
export LIMA_INSTANCE
exec lima sudo kubectl "$@"
fi