k8s.io/kubernetes@v1.31.0-alpha.0.0.20240520171757-56147500dadc/test/images/volume/rbd/create_block.sh (about)

     1  #!/usr/bin/env bash
     2  
     3  # Copyright 2015 The Kubernetes Authors.
     4  #
     5  # Licensed under the Apache License, Version 2.0 (the "License");
     6  # you may not use this file except in compliance with the License.
     7  # You may obtain a copy of the License at
     8  #
     9  #     http://www.apache.org/licenses/LICENSE-2.0
    10  #
    11  # Unless required by applicable law or agreed to in writing, software
    12  # distributed under the License is distributed on an "AS IS" BASIS,
    13  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14  # See the License for the specific language governing permissions and
    15  # limitations under the License.
    16  
    17  # Create block.tar.gz with a small ext2 filesystem.
    18  # It must be run as root (to mount with '-o loop')!
    19  
    20  # Exit on the first error.
    21  set -e
    22  
    23  MNTDIR="$(mktemp -d)"
    24  
    25  cleanup()
    26  {
    27      # Make sure we return the right exit code
    28      RET=$?
    29      # Silently remove everything and ignore errors
    30      set +e
    31      /bin/umount "$MNTDIR" 2>/dev/null
    32      /bin/rmdir "$MNTDIR" 2>/dev/null
    33      /bin/rm block 2>/dev/null
    34      exit $RET
    35  }
    36  
    37  trap cleanup TERM EXIT
    38  
    39  # Create 120MB device with ext2
    40  # (volume_io tests need at least 100MB)
    41  dd if=/dev/zero of=block seek=120 count=1 bs=1M
    42  mkfs.ext2 block
    43  
    44  # Add index.html to it
    45  mount -o loop block "$MNTDIR"
    46  echo "Hello from RBD" > "$MNTDIR/index.html"
    47  umount "$MNTDIR"
    48  
    49  rm block.tar.gz 2>/dev/null || :
    50  tar cfz block.tar.gz block