[PULL 04/14] tests/vm: switch centos.aarch64 to CentOS 8 Stream

[Thomas Huth <thuth@redhat.com>]

From: John Snow <jsnow@redhat.com>

Switch this test over to using a cloud image like the base CentOS8 VM
test, which helps make this script a bit simpler too.

Note: At time of writing, this test seems pretty flaky when run without
KVM support for aarch64. Certain unit tests like migration-test,
virtio-net-failover, test-hmp and qom-test seem quite prone to fail
under TCG. Still, this is an improvement in that at least pure build
tests are functional.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220708153503.18864-5-jsnow@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 tests/vm/centos.aarch64 | 174 ++++++----------------------------------
 1 file changed, 24 insertions(+), 150 deletions(-)

diff --git a/tests/vm/centos.aarch64 b/tests/vm/centos.aarch64
index 96c450f8be..2de7ef6992 100755
--- a/tests/vm/centos.aarch64
+++ b/tests/vm/centos.aarch64
@@ -20,150 +20,38 @@ import time
 import traceback
 import aarch64vm
 
+
 DEFAULT_CONFIG = {
     'cpu'          : "max",
     'machine'      : "virt,gic-version=max",
-    'install_cmds' : "yum install -y make ninja-build git python3 gcc gcc-c++ flex bison, "\
-        "yum install -y glib2-devel perl pixman-devel zlib-devel, "\
-        "alternatives --set python /usr/bin/python3, "\
-        "sudo dnf config-manager "\
-        "--add-repo=https://download.docker.com/linux/centos/docker-ce.repo,"\
-        "sudo dnf install --nobest -y docker-ce.aarch64,"\
-        "systemctl enable docker",
+    'install_cmds' : (
+        "dnf config-manager --set-enabled powertools, "
+        "dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo, "
+        "dnf install -y make ninja-build git python38 gcc gcc-c++ flex bison "\
+            "glib2-devel perl pixman-devel zlib-devel docker-ce.aarch64, "
+        "systemctl enable docker, "
+    ),
     # We increase beyond the default time since during boot
     # it can take some time (many seconds) to log into the VM.
     'ssh_timeout'  : 60,
 }
 
+
 class CentosAarch64VM(basevm.BaseVM):
-    name = "centos.aarch64"
+    name = "centos8.aarch64"
     arch = "aarch64"
-    login_prompt = "localhost login:"
-    prompt = '[root@localhost ~]#'
-    image_name = "CentOS-8-aarch64-1905-dvd1.iso"
-    image_link = "http://mirrors.usc.edu/pub/linux/distributions/centos/8.0.1905/isos/aarch64/"
+    image_name = "CentOS-Stream-GenericCloud-8-20220125.1.aarch64.qcow2"
+    image_link = "https://cloud.centos.org/centos/8-stream/aarch64/images/"
     image_link += image_name
     BUILD_SCRIPT = """
         set -e;
         cd $(mktemp -d);
-        sudo chmod a+r /dev/vdb;
-        tar --checkpoint=.10 -xf /dev/vdb;
+        export SRC_ARCHIVE=/dev/vdb;
+        sudo chmod a+r $SRC_ARCHIVE;
+        tar -xf $SRC_ARCHIVE;
         ./configure {configure_opts};
         make --output-sync {target} -j{jobs} {verbose};
     """
-    def set_key_perm(self):
-        """Set permissions properly on certain files to allow
-           ssh access."""
-        self.console_wait_send(self.prompt,
-                               "/usr/sbin/restorecon -R -v /root/.ssh\n")
-        self.console_wait_send(self.prompt,
-                "/usr/sbin/restorecon -R -v "\
-                "/home/{}/.ssh\n".format(self._config["guest_user"]))
-
-    def create_kickstart(self):
-        """Generate the kickstart file used to generate the centos image."""
-        # Start with the template for the kickstart.
-        ks_file = self._source_path + "/tests/vm/centos-8-aarch64.ks"
-        subprocess.check_call("cp {} ./ks.cfg".format(ks_file), shell=True)
-        # Append the ssh keys to the kickstart file
-        # as the post processing phase of installation.
-        with open("ks.cfg", "a") as f:
-            # Add in the root pw and guest user.
-            rootpw = "rootpw --plaintext {}\n"
-            f.write(rootpw.format(self._config["root_pass"]))
-            add_user = "user --groups=wheel --name={} "\
-                       "--password={} --plaintext\n"
-            f.write(add_user.format(self._config["guest_user"],
-                                    self._config["guest_pass"]))
-            # Add the ssh keys.
-            f.write("%post --log=/root/ks-post.log\n")
-            f.write("mkdir -p /root/.ssh\n")
-            addkey = 'echo "{}" >> /root/.ssh/authorized_keys\n'
-            addkey_cmd = addkey.format(self._config["ssh_pub_key"])
-            f.write(addkey_cmd)
-            f.write('mkdir -p /home/{}/.ssh\n'.format(self._config["guest_user"]))
-            addkey = 'echo "{}" >> /home/{}/.ssh/authorized_keys\n'
-            addkey_cmd = addkey.format(self._config["ssh_pub_key"],
-                                       self._config["guest_user"])
-            f.write(addkey_cmd)
-            f.write("%end\n")
-        # Take our kickstart file and create an .iso from it.
-        # The .iso will be provided to qemu as we boot
-        # from the install dvd.
-        # Anaconda will recognize the label "OEMDRV" and will
-        # start the automated installation.
-        gen_iso_img = 'genisoimage -output ks.iso -volid "OEMDRV" ks.cfg'
-        subprocess.check_call(gen_iso_img, shell=True)
-
-    def wait_for_shutdown(self):
-        """We wait for qemu to shutdown the VM and exit.
-           While this happens we display the console view
-           for easier debugging."""
-        # The image creation is essentially done,
-        # so whether or not the wait is successful we want to
-        # wait for qemu to exit (the self.wait()) before we return.
-        try:
-            self.console_wait("reboot: Power down")
-        except Exception as e:
-            sys.stderr.write("Exception hit\n")
-            if isinstance(e, SystemExit) and e.code == 0:
-                return 0
-            traceback.print_exc()
-        finally:
-            self.wait()
-
-    def build_base_image(self, dest_img):
-        """Run through the centos installer to create
-           a base image with name dest_img."""
-        # We create the temp image, and only rename
-        # to destination when we are done.
-        img = dest_img + ".tmp"
-        # Create an empty image.
-        # We will provide this as the install destination.
-        qemu_img_create = "qemu-img create {} 50G".format(img)
-        subprocess.check_call(qemu_img_create, shell=True)
-
-        # Create our kickstart file to be fed to the installer.
-        self.create_kickstart()
-        # Boot the install dvd with the params as our ks.iso
-        os_img = self._download_with_cache(self.image_link)
-        dvd_iso = "centos-8-dvd.iso"
-        subprocess.check_call(["cp", "-f", os_img, dvd_iso])
-        extra_args = "-cdrom ks.iso"
-        extra_args += " -drive file={},if=none,id=drive1,cache=writeback"
-        extra_args += " -device virtio-blk,drive=drive1,bootindex=1"
-        extra_args = extra_args.format(dvd_iso).split(" ")
-        self.boot(img, extra_args=extra_args)
-        self.console_wait_send("change the selection", "\n")
-        # We seem to need to hit esc (chr(27)) twice to abort the
-        # media check, which takes a long time.
-        # Waiting a bit seems to be more reliable before hitting esc.
-        self.console_wait("Checking")
-        time.sleep(5)
-        self.console_wait_send("Checking", chr(27))
-        time.sleep(5)
-        self.console_wait_send("Checking", chr(27))
-        print("Found Checking")
-        # Give sufficient time for the installer to create the image.
-        self.console_init(timeout=7200)
-        self.wait_for_shutdown()
-        os.rename(img, dest_img)
-        print("Done with base image build: {}".format(dest_img))
-
-    def check_create_base_img(self, img_base, img_dest):
-        """Create a base image using the installer.
-           We will use the base image if it exists.
-           This helps cut down on install time in case we
-           need to restart image creation,
-           since the base image creation can take a long time."""
-        if not os.path.exists(img_base):
-            print("Generate new base image: {}".format(img_base))
-            self.build_base_image(img_base);
-        else:
-            print("Use existing base image: {}".format(img_base))
-        # Save a copy of the base image and copy it to dest.
-        # which we will use going forward.
-        subprocess.check_call(["cp", img_base, img_dest])
 
     def boot(self, img, extra_args=None):
         aarch64vm.create_flash_images(self._tmpdir, self._efi_aarch64)
@@ -185,42 +73,28 @@ class CentosAarch64VM(basevm.BaseVM):
         super(CentosAarch64VM, self).boot(img, extra_args=extra_args)
 
     def build_image(self, img):
+        cimg = self._download_with_cache(self.image_link)
         img_tmp = img + ".tmp"
-        self.check_create_base_img(img + ".base", img_tmp)
-
-        # Boot the new image for the first time to finish installation.
-        self.boot(img_tmp)
-        self.console_init()
-        self.console_wait_send(self.login_prompt, "root\n")
-        self.console_wait_send("Password:",
-                               "{}\n".format(self._config["root_pass"]))
-
-        self.set_key_perm()
-        self.console_wait_send(self.prompt, "rpm -q centos-release\n")
-        enable_adapter = "sed -i 's/ONBOOT=no/ONBOOT=yes/g'" \
-                         " /etc/sysconfig/network-scripts/ifcfg-enp0s1\n"
-        self.console_wait_send(self.prompt, enable_adapter)
-        self.console_wait_send(self.prompt, "ifup enp0s1\n")
-        self.console_wait_send(self.prompt,
-                               'echo "qemu  ALL=(ALL) NOPASSWD:ALL" | '\
-                               'sudo tee /etc/sudoers.d/qemu\n')
-        self.console_wait(self.prompt)
-
-        # Rest of the commands we issue through ssh.
+        subprocess.run(['cp', '-f', cimg, img_tmp])
+        self.exec_qemu_img("resize", img_tmp, "50G")
+        self.boot(img_tmp, extra_args = ["-cdrom", self.gen_cloud_init_iso()])
         self.wait_ssh(wait_root=True)
+        self.ssh_root_check("touch /etc/cloud/cloud-init.disabled")
 
         # If the user chooses *not* to do the second phase,
         # then we will jump right to the graceful shutdown
         if self._config['install_cmds'] != "":
             install_cmds = self._config['install_cmds'].split(',')
             for cmd in install_cmds:
-                self.ssh_root(cmd)
+                self.ssh_root_check(cmd)
+
         self.ssh_root("poweroff")
-        self.wait_for_shutdown()
+        self.wait()
         os.rename(img_tmp, img)
         print("image creation complete: {}".format(img))
         return 0
 
+
 if __name__ == "__main__":
     defaults = aarch64vm.get_config_defaults(CentosAarch64VM, DEFAULT_CONFIG)
     sys.exit(basevm.main(CentosAarch64VM, defaults))
-- 
2.31.1