vendor files

vendor/k8s.io/kubernetes/build/pause/.gitignore

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+/.container-*
+/.push-*
+/bin

vendor/k8s.io/kubernetes/build/pause/Dockerfile

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+# Copyright 2016 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM scratch
+ARG ARCH
+ADD bin/pause-${ARCH} /pause
+ENTRYPOINT ["/pause"]

vendor/k8s.io/kubernetes/build/pause/Makefile

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+# Copyright 2016 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+.PHONY: all push push-legacy container clean orphan
+
+REGISTRY ?= gcr.io/google_containers
+IMAGE = $(REGISTRY)/pause-$(ARCH)
+LEGACY_AMD64_IMAGE = $(REGISTRY)/pause
+
+TAG = 3.0
+
+# Architectures supported: amd64, arm, arm64, ppc64le and s390x
+ARCH ?= amd64
+
+ALL_ARCH = amd64 arm arm64 ppc64le s390x
+
+CFLAGS = -Os -Wall -Werror -static
+KUBE_CROSS_IMAGE ?= gcr.io/google_containers/kube-cross
+KUBE_CROSS_VERSION ?= $(shell cat ../build-image/cross/VERSION)
+
+BIN = pause
+SRCS = pause.c
+
+ifeq ($(ARCH),amd64)
+	TRIPLE ?= x86_64-linux-gnu
+endif
+
+ifeq ($(ARCH),arm)
+	TRIPLE ?= arm-linux-gnueabi
+endif
+
+ifeq ($(ARCH),arm64)
+	TRIPLE ?= aarch64-linux-gnu
+endif
+
+ifeq ($(ARCH),ppc64le)
+	TRIPLE ?= powerpc64le-linux-gnu
+endif
+
+ifeq ($(ARCH),s390x)
+	TRIPLE ?= s390x-linux-gnu
+endif
+
+# If you want to build AND push all containers, see the 'all-push' rule.
+all: all-container
+
+sub-container-%:
+	$(MAKE) ARCH=$* container
+
+sub-push-%:
+	$(MAKE) ARCH=$* push
+
+all-container: $(addprefix sub-container-,$(ALL_ARCH))
+
+all-push: $(addprefix sub-push-,$(ALL_ARCH))
+
+build: bin/$(BIN)-$(ARCH)
+
+bin/$(BIN)-$(ARCH): $(SRCS)
+	mkdir -p bin
+	docker run --rm -u $$(id -u):$$(id -g) -v $$(pwd):/build \
+		$(KUBE_CROSS_IMAGE):$(KUBE_CROSS_VERSION) \
+		/bin/bash -c "\
+			cd /build && \
+			$(TRIPLE)-gcc $(CFLAGS) -o $@ $^ && \
+			$(TRIPLE)-strip $@"
+
+container: .container-$(ARCH)
+.container-$(ARCH): bin/$(BIN)-$(ARCH)
+	docker build --pull -t $(IMAGE):$(TAG) --build-arg ARCH=$(ARCH) .
+ifeq ($(ARCH),amd64)
+	docker rmi $(LEGACY_AMD64_IMAGE):$(TAG) 2>/dev/null || true
+	docker tag $(IMAGE):$(TAG) $(LEGACY_AMD64_IMAGE):$(TAG)
+endif
+	touch $@
+
+push: .push-$(ARCH)
+.push-$(ARCH): .container-$(ARCH)
+	gcloud docker -- push $(IMAGE):$(TAG)
+	touch $@
+
+push-legacy: .push-legacy-$(ARCH)
+.push-legacy-$(ARCH): .container-$(ARCH)
+ifeq ($(ARCH),amd64)
+	gcloud docker -- push $(LEGACY_AMD64_IMAGE):$(TAG)
+endif
+	touch $@
+
+# Useful for testing, not automatically included in container image
+orphan: bin/orphan-$(ARCH)
+bin/orphan-$(ARCH): orphan.c
+	mkdir -p bin
+	docker run -u $$(id -u):$$(id -g) -v $$(pwd):/build \
+		$(KUBE_CROSS_IMAGE):$(KUBE_CROSS_VERSION) \
+		/bin/bash -c "\
+			cd /build && \
+			$(TRIPLE)-gcc $(CFLAGS) -o $@ $^ && \
+			$(TRIPLE)-strip $@"
+
+clean:
+	rm -rf .container-* .push-* bin/

vendor/k8s.io/kubernetes/build/pause/orphan.c

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+/*
+Copyright 2016 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+/* Creates a zombie to be reaped by init. Useful for testing. */
+
+#include <stdio.h>
+#include <unistd.h>
+
+int main() {
+  pid_t pid;
+  pid = fork();
+  if (pid == 0) {
+    while (getppid() > 1)
+      ;
+    printf("Child exiting: pid=%d ppid=%d\n", getpid(), getppid());
+    return 0;
+  } else if (pid > 0) {
+    printf("Parent exiting: pid=%d ppid=%d\n", getpid(), getppid());
+    return 0;
+  }
+  perror("Could not create child");
+  return 1;
+}

vendor/k8s.io/kubernetes/build/pause/pause.c

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+/*
+Copyright 2016 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+static void sigdown(int signo) {
+  psignal(signo, "Shutting down, got signal");
+  exit(0);
+}
+
+static void sigreap(int signo) {
+  while (waitpid(-1, NULL, WNOHANG) > 0);
+}
+
+int main() {
+  if (getpid() != 1)
+    /* Not an error because pause sees use outside of infra containers. */
+    fprintf(stderr, "Warning: pause should be the first process\n");
+
+  if (sigaction(SIGINT, &(struct sigaction){.sa_handler = sigdown}, NULL) < 0)
+    return 1;
+  if (sigaction(SIGTERM, &(struct sigaction){.sa_handler = sigdown}, NULL) < 0)
+    return 2;
+  if (sigaction(SIGCHLD, &(struct sigaction){.sa_handler = sigreap,
+                                             .sa_flags = SA_NOCLDSTOP},
+                NULL) < 0)
+    return 3;
+
+  for (;;)
+    pause();
+  fprintf(stderr, "Error: infinite loop terminated\n");
+  return 42;
+}