[infra] Consolidate all ubuntu tests into one image.

This makes it easier to add more tests that run on Ubuntu. We can now just
add a bash script and call that from integration_test without having to set up
another image.

PiperOrigin-RevId: 355000410

2 files changed, 0 insertions, 100 deletions

diff --git a/images/basic/linktest/Dockerfile b/images/basic/linktest/Dockerfile
deleted file mode 100644
index baebc9b76..000000000
--- a/images/basic/linktest/Dockerfile
+++ /dev/null
@@ -1,7 +0,0 @@
-FROM ubuntu:bionic
-
-WORKDIR /root
-COPY . .
-
-RUN apt-get update && apt-get install -y gcc
-RUN gcc -O2 -o link_test link_test.c
diff --git a/images/basic/linktest/link_test.c b/images/basic/linktest/link_test.c
deleted file mode 100644
index 45ab00abe..000000000
--- a/images/basic/linktest/link_test.c
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright 2020 The gVisor 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 <err.h>
-#include <fcntl.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-// Basic test for linkat(2). Syscall tests requires CAP_DAC_READ_SEARCH and it
-// cannot use tricks like userns as root. For this reason, run a basic link test
-// to ensure some coverage.
-int main(int argc, char** argv) {
-  const char kOldPath[] = "old.txt";
-  int fd = open(kOldPath, O_RDWR | O_CREAT | O_TRUNC, 0600);
-  if (fd < 0) {
-    errx(1, "open(%s) failed", kOldPath);
-  }
-  const char kData[] = "some random content";
-  if (write(fd, kData, sizeof(kData)) < 0) {
-    err(1, "write failed");
-  }
-  close(fd);
-
-  struct stat old_stat;
-  if (stat(kOldPath, &old_stat)) {
-    errx(1, "stat(%s) failed", kOldPath);
-  }
-
-  const char kNewPath[] = "new.txt";
-  if (link(kOldPath, kNewPath)) {
-    errx(1, "link(%s, %s) failed", kOldPath, kNewPath);
-  }
-
-  struct stat new_stat;
-  if (stat(kNewPath, &new_stat)) {
-    errx(1, "stat(%s) failed", kNewPath);
-  }
-
-  // Check that files are the same.
-  if (old_stat.st_dev != new_stat.st_dev) {
-    errx(1, "files st_dev is different, want: %lu, got: %lu", old_stat.st_dev,
-         new_stat.st_dev);
-  }
-  if (old_stat.st_ino != new_stat.st_ino) {
-    errx(1, "files st_ino is different, want: %lu, got: %lu", old_stat.st_ino,
-         new_stat.st_ino);
-  }
-
-  // Check that link count is correct.
-  if (new_stat.st_nlink != old_stat.st_nlink + 1) {
-    errx(1, "wrong nlink, want: %lu, got: %lu", old_stat.st_nlink + 1,
-         new_stat.st_nlink);
-  }
-
-  // Check taht contents are the same.
-  fd = open(kNewPath, O_RDONLY);
-  if (fd < 0) {
-    errx(1, "open(%s) failed", kNewPath);
-  }
-  char buf[sizeof(kData)] = {};
-  if (read(fd, buf, sizeof(buf)) < 0) {
-    err(1, "read failed");
-  }
-  close(fd);
-
-  if (strcmp(buf, kData) != 0) {
-    errx(1, "file content mismatch: %s", buf);
-  }
-
-  // Cleanup.
-  if (unlink(kNewPath)) {
-    errx(1, "unlink(%s) failed", kNewPath);
-  }
-  if (unlink(kOldPath)) {
-    errx(1, "unlink(%s) failed", kOldPath);
-  }
-
-  // Success!
-  return 0;
-}