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org/k8s/kubelet/libpod/tmp/pause.pid

@@ -0,0 +1 @@
+926

org/k8s/pause/Dockerfile.template

@@ -7,10 +7,83 @@ LABEL org.opencontainers.image.title="pause" \
     org.opencontainers.image.licenses="GPLv2" \
     org.opencontainers.image.vendor="ALT Linux Team"
 
-{{ install_packages("kubernetes-pause") }}
+RUN cat > pause.c <<EOF
+/*
+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 <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#define STRINGIFY(x) #x
+#define VERSION_STRING(x) STRINGIFY(x)
+
+#ifndef VERSION
+#define VERSION HEAD
+#endif
+
+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(int argc, char **argv) {
+  int i;
+  for (i = 1; i < argc; ++i) {
+    if (!strcasecmp(argv[i], "-v")) {
+      printf("pause.c %s\n", VERSION_STRING(VERSION));
+      return 0;
+    }
+  }
+
+  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;
+}
+EOF
+
+{{ install_packages("gcc", "glibc-devel-static") }}
+
+RUN gcc $(rpm --eval %optflags) -static -DVERSION=3.9 pause.c -o pause
 
 FROM scratch
 
-COPY --from=installer /usr/bin/kubernetes-pause /pause
+COPY --from=installer /pause /pause
 
 ENTRYPOINT ["/pause"]

org/k8s/pause/info.yaml

@@ -1,5 +1,6 @@
 ---
 is_versioned: true
+version_template: "3.9"
 source_packages:
   - kubernetes-pause
 ...