Remove unused rootless-cni-infra container files

Signed-off-by: Paul Holzinger <paul.holzinger@web.de>

3 files changed, 0 insertions, 242 deletions

diff --git a/contrib/rootless-cni-infra/Containerfile b/contrib/rootless-cni-infra/Containerfile
deleted file mode 100644
index 4324f39d2..000000000
--- a/contrib/rootless-cni-infra/Containerfile
+++ /dev/null
@@ -1,36 +0,0 @@
-ARG GOLANG_VERSION=1.15
-ARG ALPINE_VERSION=3.12
-ARG CNI_VERSION=v0.8.0
-ARG CNI_PLUGINS_VERSION=v0.8.7
-ARG DNSNAME_VERSION=v1.1.1
-
-FROM golang:${GOLANG_VERSION}-alpine${ALPINE_VERSION} AS golang-base
-RUN apk add --no-cache git
-
-FROM golang-base AS cnitool
-RUN git clone https://github.com/containernetworking/cni /go/src/github.com/containernetworking/cni
-WORKDIR /go/src/github.com/containernetworking/cni
-ARG CNI_VERSION
-RUN git checkout ${CNI_VERSION}
-RUN go build -o /cnitool ./cnitool
-
-FROM golang-base AS dnsname
-RUN git clone https://github.com/containers/dnsname /go/src/github.com/containers/dnsname
-WORKDIR /go/src/github.com/containers/dnsname
-ARG DNSNAME_VERSION
-RUN git checkout ${DNSNAME_VERSION}
-RUN go build -o /dnsname ./plugins/meta/dnsname
-
-FROM alpine:${ALPINE_VERSION}
-RUN apk add --no-cache curl dnsmasq iptables ip6tables iproute2
-ARG TARGETARCH
-ARG CNI_PLUGINS_VERSION
-RUN mkdir -p /opt/cni/bin && \
-    curl -fsSL https://github.com/containernetworking/plugins/releases/download/${CNI_PLUGINS_VERSION}/cni-plugins-linux-${TARGETARCH}-${CNI_PLUGINS_VERSION}.tgz | tar xz -C /opt/cni/bin
-COPY --from=cnitool /cnitool /usr/local/bin
-COPY --from=dnsname /dnsname /opt/cni/bin
-COPY rootless-cni-infra /usr/local/bin
-ENV CNI_PATH=/opt/cni/bin
-CMD ["sleep", "infinity"]
-
-ENV ROOTLESS_CNI_INFRA_VERSION=5
diff --git a/contrib/rootless-cni-infra/README.md b/contrib/rootless-cni-infra/README.md
deleted file mode 100644
index c43b4cf49..000000000
--- a/contrib/rootless-cni-infra/README.md
+++ /dev/null
@@ -1,25 +0,0 @@
-# rootless-cni-infra
-
-Infra container for CNI-in-slirp4netns.
-
-## How it works
-
-When a CNI network is specified for `podman run` in rootless mode, Podman launches the `rootless-cni-infra` container to execute CNI plugins inside slirp4netns.
-
-The infra container is created per user, by executing an equivalent of:
-`podman run -d --name rootless-cni-infra --pid=host --privileged -v $HOME/.config/cni/net.d:/etc/cni/net.d rootless-cni-infra`.
-The infra container is automatically deleted when no CNI network is in use.
-
-Podman then allocates a CNI netns in the infra container, by executing an equivalent of:
-`podman exec rootless-cni-infra rootless-cni-infra alloc $CONTAINER_ID $NETWORK_NAME $POD_NAME`.
-
-The allocated netns is deallocated when the container is being removed, by executing an equivalent of:
-`podman exec rootless-cni-infra rootless-cni-infra dealloc $CONTAINER_ID $NETWORK_NAME`.
-
-The container images live on `quay.io/libpod/rootless-cni-infra`.  The tags have the format `$version-$architecture`.  Please make sure to increase the version number in the Containerfile (i.e., `ROOTLESS_CNI_INFRA_VERSION`) when applying changes to this directory.  After committing the changes, upload the image(s) with the corresponding tag.
-
-## Directory layout
-
-* `/run/rootless-cni-infra/${CONTAINER_ID}/pid`: PID of the `sleep infinity` process that corresponds to the allocated netns
-* `/run/rootless-cni-infra/${CONTAINER_ID}/attached/${NETWORK_NAME}`: CNI result
-* `/run/rootless-cni-infra/${CONTAINER_ID}/attached-args/${NETWORK_NAME}`: CNI args
diff --git a/contrib/rootless-cni-infra/rootless-cni-infra b/contrib/rootless-cni-infra/rootless-cni-infra
deleted file mode 100755
index cceb8d817..000000000
--- a/contrib/rootless-cni-infra/rootless-cni-infra
+++ /dev/null
@@ -1,181 +0,0 @@
-#!/bin/sh
-set -eu
-
-ARG0="$0"
-BASE="/run/rootless-cni-infra"
-
-wait_unshare_net() {
-	pid="$1"
-	# NOTE: busybox shell doesn't support the `for ((i=0; i < $MAX; i++)); do foo; done` statement
-	i=0
-	while :; do
-		if [ "$(readlink /proc/self/ns/net)" != "$(readlink /proc/${pid}/ns/net)" ]; then
-			break
-		fi
-		sleep 0.1
-		if [ $i -ge 10 ]; then
-			echo >&2 "/proc/${pid}/ns/net cannot be unshared"
-			exit 1
-		fi
-		i=$((i + 1))
-	done
-}
-
-# CLI subcommand: "alloc $CONTAINER_ID $NETWORK_NAME $POD_NAME $IP $MAC $CAP_ARGS"
-cmd_entrypoint_alloc() {
-	if [ "$#" -ne 6 ]; then
-		echo >&2 "Usage: $ARG0 alloc CONTAINER_ID NETWORK_NAME POD_NAME IP MAC CAP_ARGS"
-		exit 1
-	fi
-
-	ID="$1"
-	NET="$2"
-	K8S_POD_NAME="$3"
-	IP="$4"
-	MAC="$5"
-	CAP_ARGS="$6"
-
-	dir="${BASE}/${ID}"
-	mkdir -p "${dir}/attached" "${dir}/attached-args"
-
-	pid=""
-	if [ -f "${dir}/pid" ]; then
-		pid=$(cat "${dir}/pid")
-	else
-		unshare -n sleep infinity &
-		pid="$!"
-		wait_unshare_net "${pid}"
-		echo "${pid}" >"${dir}/pid"
-		nsenter -t "${pid}" -n ip link set lo up
-	fi
-	CNI_ARGS="IgnoreUnknown=1;K8S_POD_NAME=${K8S_POD_NAME}"
-	if [ "$IP" ]; then
-		CNI_ARGS="$CNI_ARGS;IP=${IP}"
-	fi
-	if [ "$MAC" ]; then
-		CNI_ARGS="$CNI_ARGS;MAC=${MAC}"
-	fi
-	if [ "$CAP_ARGS" ]; then
-		CAP_ARGS="$CAP_ARGS"
-	fi
-	nwcount=$(find "${dir}/attached" -type f | wc -l)
-	CNI_IFNAME="eth${nwcount}"
-	export CNI_ARGS CNI_IFNAME CAP_ARGS
-	cnitool add "${NET}" "/proc/${pid}/ns/net" >"${dir}/attached/${NET}"
-	echo "${CNI_ARGS}" >"${dir}/attached-args/${NET}"
-
-	# return the result
-	ns="/proc/${pid}/ns/net"
-	echo "{\"ns\":\"${ns}\"}"
-}
-
-# CLI subcommand: "dealloc $CONTAINER_ID $NETWORK_NAME"
-cmd_entrypoint_dealloc() {
-	if [ "$#" -ne 2 ]; then
-		echo >&2 "Usage: $ARG0 dealloc CONTAINER_ID NETWORK_NAME"
-		exit 1
-	fi
-
-	ID=$1
-	NET=$2
-
-	dir="${BASE}/${ID}"
-	if [ ! -f "${dir}/pid" ]; then
-		exit 0
-	fi
-	pid=$(cat "${dir}/pid")
-	if [ -f "${dir}/attached-args/${NET}" ]; then
-		CNI_ARGS=$(cat "${dir}/attached-args/${NET}")
-		export CNI_ARGS
-	fi
-	cnitool del "${NET}" "/proc/${pid}/ns/net"
-	rm -f "${dir}/attached/${NET}" "${dir}/attached-args/${NET}"
-
-	nwcount=$(find "${dir}/attached" -type f | wc -l)
-	if [ "${nwcount}" = 0 ]; then
-		kill -9 "${pid}"
-		rm -rf "${dir}"
-	fi
-
-	# return empty json
-	echo "{}"
-}
-
-# CLI subcommand: "is-idle"
-cmd_entrypoint_is_idle() {
-	if [ ! -d ${BASE} ]; then
-		echo '{"idle": true}'
-	elif [ -z "$(ls -1 ${BASE})" ]; then
-		echo '{"idle": true}'
-	else
-		echo '{"idle": false}'
-	fi
-}
-
-# CLI subcommand: "print-cni-result $CONTAINER_ID $NETWORK_NAME"
-cmd_entrypoint_print_cni_result() {
-	if [ "$#" -ne 2 ]; then
-		echo >&2 "Usage: $ARG0 print-cni-result CONTAINER_ID NETWORK_NAME"
-		exit 1
-	fi
-
-	ID=$1
-	NET=$2
-
-	# the result shall be CNI JSON
-	cat "${BASE}/${ID}/attached/${NET}"
-}
-
-# CLI subcommand: "print-netns-path $CONTAINER_ID"
-cmd_entrypoint_print_netns_path() {
-	if [ "$#" -ne 1 ]; then
-		echo >&2 "Usage: $ARG0 print-netns-path CONTAINER_ID"
-		exit 1
-	fi
-
-	ID=$1
-
-	pid=$(cat "${BASE}/${ID}/pid")
-	path="/proc/${pid}/ns/net"
-
-	# return the result
-	echo "{\"path\":\"${path}\"}"
-}
-
-# CLI subcommand: "help"
-cmd_entrypoint_help() {
-	echo "Usage: ${ARG0} COMMAND"
-	echo
-	echo "Rootless CNI Infra container"
-	echo
-	echo "Commands:"
-	echo "  alloc             Allocate a netns"
-	echo "  dealloc           Deallocate a netns"
-	echo "  is-idle           Print whether the infra container is idle"
-	echo "  print-cni-result  Print CNI result"
-	echo "  print-netns-path  Print netns path"
-	echo "  help              Print help"
-	echo "  version           Print version"
-}
-
-# CLI subcommand: "version"
-cmd_entrypoint_version() {
-	echo "{\"version\": \"${ROOTLESS_CNI_INFRA_VERSION}\"}"
-}
-
-# parse args
-command="${1:-}"
-if [ -z "$command" ]; then
-	echo >&2 "No command was specified. Run \`${ARG0} help\` to see the usage."
-	exit 1
-fi
-
-command_func=$(echo "cmd_entrypoint_${command}" | sed -e "s/-/_/g")
-if ! command -v "${command_func}" >/dev/null 2>&1; then
-	echo >&2 "Unknown command: ${command}. Run \`${ARG0} help\` to see the usage."
-	exit 1
-fi
-
-# start the command func
-shift
-"${command_func}" "$@"