(FunctionDef ensure-local-disks []
  (List
    (If
      (Subshell
        (Com {[LIT_CHARS grep]} {[DQ [LIT_CHARS /mnt/ephemeral]]} {[LIT_CHARS /proc/mounts]}        )
      )
      (List
        (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Found /mnt/ephemeral in /proc/mounts; skipping local disk initialization"]]}        )
        (Com {[LIT_CHARS return]}        )
      )
    )
    (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('block_devices', {[Array ]})])
    (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('ephemeral_devices', {[ComSub (AndOr OP_OR_IF (Subshell (Pipeline (Com {[LIT_CHARS curl]} {[LIT_CHARS --silent]} {[LIT_CHARS http] [LIT_OTHER ":"] [LIT_CHARS //169.254.169.254/2014-11-05/meta-data/block-device-mapping/]}) (Com {[LIT_CHARS grep]} {[LIT_CHARS ephemeral]}) ) ) (Com {[LIT_CHARS true]}) )]})])
    (For ephemeral_device [{[VarSub ephemeral_devices]}])
      (List
        (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Checking ephemeral device: "][VarSub ephemeral_device]]}        )
        (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('aws_device', {[ComSub (Com {[LIT_CHARS curl]} {[LIT_CHARS --silent]} {[LIT_CHARS http] [LIT_OTHER ":"] [LIT_CHARS //169.254.169.254/2014-11-05/meta-data/block-device-mapping/] [VarSub ephemeral_device]})]})])
        (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('device_path', {[DQ ]})])
        (If
          (Com {[LIT_DBRACKET_LIKE "["]} {[LIT_CHARS -b]} {[LIT_CHARS /dev/] [VarSub aws_device]} {[LIT_DBRACKET_LIKE "]"]}          )
          (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('device_path', {[DQ [LIT_CHARS /dev/][VarSub aws_device]]})])
          (ElseTrue)
          (List
            (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('xvd_style', {[ComSub (Pipeline (Com {[LIT_CHARS echo]} {[VarSub aws_device]}) (Com {[LIT_CHARS sed]} {[DQ [LIT_CHARS s/sd/xvd/]]}) )]})])
            (If
              (Com {[LIT_DBRACKET_LIKE "["]} {[LIT_CHARS -b]} {[LIT_CHARS /dev/] [VarSub xvd_style]} {[LIT_DBRACKET_LIKE "]"]}              )
              (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('device_path', {[DQ [LIT_CHARS /dev/][VarSub xvd_style]]})])
            )
          )
        )
        (If
          (DBracket {B1 UNARY_STRING_z {[VarSub device_path]}})
          (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "  Could not find disk: "][VarSub ephemeral_device][LIT_CHARS "@"][VarSub aws_device]]}          )
          (ElseTrue)
          (List
            (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "  Detected ephemeral disk: "][VarSub ephemeral_device][LIT_CHARS "@"][VarSub device_path]]}            )
            (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('block_devices+', {[Array {[VarSub device_path]}]})])
          )
        )
      )
    )
    (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('move_docker', {[DQ ]})])
    (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('move_kubelet', {[DQ ]})])
    (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('docker_storage', {[VarSub DOCKER_STORAGE test_op=VS_TEST_COLON_HYPHEN {[LIT_CHARS aufs]}]})])
    (If
      (DBracket {B2 BINARY_STRING_EQUAL {[VarSub block_devices bracket_op=(Index {A Atom NODE_ARITH_WORD {AS_OP_AT "@"}}) transform_ops=[(#len)]]} {[LIT_CHARS 0]}})
      (List
        (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "No ephemeral block devices found; will use aufs on root"]]}        )
        (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('docker_storage', {[DQ [LIT_CHARS aufs]]})])
      )
      (ElseTrue)
      (List
        (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Block devices: "][VarSub block_devices bracket_op=(Index {A Atom NODE_ARITH_WORD {AS_OP_AT "@"}})]]}        )
        (For block_device [{[VarSub block_devices]}])
          (List
            (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Unmounting "][VarSub block_device]]}            )
            (AndOr OP_OR_IF
              (Com {[LIT_CHARS /bin/umount]} {[VarSub block_device]}              )
              (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Ignoring failure umounting "][VarSub block_device]]}              )
            )
            (Com {[LIT_CHARS sed]} {[LIT_CHARS -i]} {[LIT_CHARS -e]} {[DQ [\ LIT_ESCAPED_CHAR "\\|"][LIT_CHARS "^"][VarSub block_device][LIT_CHARS "|d"]]} {[LIT_CHARS /etc/fstab]}            )
          )
        )
        (Com {[LIT_CHARS sed]} {[LIT_CHARS -i]} {[LIT_CHARS -e]} {[DQ [\ LIT_ESCAPED_CHAR "\\|"][LIT_CHARS "/mnt/ephemeral|d"]]} {[LIT_CHARS /etc/fstab]}        )
        (If
          (DBracket {B2 BINARY_STRING_EQUAL {[VarSub docker_storage]} {[DQ [LIT_CHARS btrfs]]}})
          (List
            (Com {[LIT_CHARS apt-get-install]} {[LIT_CHARS btrfs-tools]}            )
            (If
              (DBracket {B2 BINARY_STRING_EQUAL {[VarSub block_devices bracket_op=(Index {A Atom NODE_ARITH_WORD {AS_OP_AT "@"}}) transform_ops=[(#len)]]} {[LIT_CHARS 1]}})
              (List
                (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "One ephemeral block device found; formatting with btrfs"]]}                )
                (Com {[LIT_CHARS mkfs.btrfs]} {[LIT_CHARS -f]} {[VarSub block_devices bracket_op=(Index {A Atom NODE_ARITH_WORD {[AS_NUM_LITERAL 0]}})]}                )
              )
              (ElseTrue)
              (List
                (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Found multiple ephemeral block devices, formatting with btrfs as RAID-0"]]}                )
                (Com {[LIT_CHARS mkfs.btrfs]} {[LIT_CHARS -f]} {[LIT_CHARS --data]} {[LIT_CHARS raid0]} {[VarSub block_devices bracket_op=(Index {A Atom NODE_ARITH_WORD {AS_OP_AT "@"}})]}                )
              )
            )
            (Com {[LIT_CHARS echo]} {[DQ [VarSub block_devices bracket_op=(Index {A Atom NODE_ARITH_WORD {[AS_NUM_LITERAL 0]}})][LIT_CHARS "  /mnt/ephemeral  btrfs  noatime,nofail  0 0"]]}
              <
              (FilenameRedirectNode filename={[LIT_CHARS /etc/fstab]} <REDIR_DGREAT ">>"> 1),
              >
            )
            (Com {[LIT_CHARS mkdir]} {[LIT_CHARS -p]} {[LIT_CHARS /mnt/ephemeral]}            )
            (Com {[LIT_CHARS mount]} {[LIT_CHARS /mnt/ephemeral]}            )
            (Com {[LIT_CHARS mkdir]} {[LIT_CHARS -p]} {[LIT_CHARS /mnt/ephemeral/kubernetes]}            )
            (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('move_docker', {[DQ [LIT_CHARS /mnt/ephemeral]]})])
            (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('move_kubelet', {[DQ [LIT_CHARS /mnt/ephemeral/kubernetes]]})])
          )
          (DBracket {B2 BINARY_STRING_EQUAL {[VarSub docker_storage]} {[DQ [LIT_CHARS aufs-nolvm]]}})
          (List
            (If
              (DBracket {B2 BINARY_STRING_NOT_EQUAL {[VarSub block_devices bracket_op=(Index {A Atom NODE_ARITH_WORD {AS_OP_AT "@"}}) transform_ops=[(#len)]]} {[LIT_CHARS 1]}})
              (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "aufs-nolvm selected, but multiple ephemeral devices were found; only the first will be available"]]}              )
            )
            (Com {[LIT_CHARS mkfs]} {[LIT_CHARS -t]} {[LIT_CHARS ext4]} {[VarSub block_devices bracket_op=(Index {A Atom NODE_ARITH_WORD {[AS_NUM_LITERAL 0]}})]}            )
            (Com {[LIT_CHARS echo]} {[DQ [VarSub block_devices bracket_op=(Index {A Atom NODE_ARITH_WORD {[AS_NUM_LITERAL 0]}})][LIT_CHARS "  /mnt/ephemeral  ext4     noatime,nofail  0 0"]]}
              <
              (FilenameRedirectNode filename={[LIT_CHARS /etc/fstab]} <REDIR_DGREAT ">>"> 1),
              >
            )
            (Com {[LIT_CHARS mkdir]} {[LIT_CHARS -p]} {[LIT_CHARS /mnt/ephemeral]}            )
            (Com {[LIT_CHARS mount]} {[LIT_CHARS /mnt/ephemeral]}            )
            (Com {[LIT_CHARS mkdir]} {[LIT_CHARS -p]} {[LIT_CHARS /mnt/ephemeral/kubernetes]}            )
            (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('move_docker', {[DQ [LIT_CHARS /mnt/ephemeral]]})])
            (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('move_kubelet', {[DQ [LIT_CHARS /mnt/ephemeral/kubernetes]]})])
          )
          (DBracket {B? LOGICAL_BINARY_OR {B2 BINARY_STRING_EQUAL {[VarSub docker_storage]} {[DQ [LIT_CHARS devicemapper]]}} {B2 BINARY_STRING_EQUAL {[VarSub docker_storage]} {[DQ [LIT_CHARS aufs]]}}})
          (List
            (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Using LVM2 and ext4"]]}            )
            (Com {[LIT_CHARS apt-get-install]} {[LIT_CHARS lvm2]}            )
            (= scope=<EAssignScope.GLOBAL 1> flags=1 words=[] bindings=[('LVM_SUPPRESS_FD_WARNINGS', {[LIT_CHARS 1]})])
            (For block_device [{[VarSub block_devices]}])
              (Com {[LIT_CHARS pvcreate]} {[VarSub block_device]}              )
            )
            (Com {[LIT_CHARS vgcreate]} {[LIT_CHARS vg-ephemeral]} {[VarSub block_devices bracket_op=(Index {A Atom NODE_ARITH_WORD {AS_OP_AT "@"}})]}            )
            (If
              (DBracket {B2 BINARY_STRING_EQUAL {[VarSub docker_storage]} {[DQ [LIT_CHARS devicemapper]]}})
              (List
                (Com {[LIT_CHARS lvcreate]} {[LIT_CHARS -l]} {[LIT_CHARS 80] [LIT_OTHER "%"] [LIT_CHARS VG]} {[LIT_CHARS --thinpool]} {[LIT_CHARS docker-thinpool]} {[LIT_CHARS vg-ephemeral]}                )
                (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('DOCKER_OPTS', {[DQ [VarSub DOCKER_OPTS test_op=VS_TEST_COLON_HYPHEN {}][LIT_CHARS " --storage-opt dm.thinpooldev=/dev/mapper/vg--ephemeral-docker--thinpool"]]})])
                (Com {[LIT_CHARS lvcreate]} {[LIT_CHARS -l]} {[LIT_CHARS 100] [LIT_OTHER "%"] [LIT_CHARS FREE]} {[LIT_CHARS -n]} {[LIT_CHARS kubernetes]} {[LIT_CHARS vg-ephemeral]}                )
                (Com {[LIT_CHARS mkfs]} {[LIT_CHARS -t]} {[LIT_CHARS ext4]} {[LIT_CHARS /dev/vg-ephemeral/kubernetes]}                )
                (Com {[LIT_CHARS mkdir]} {[LIT_CHARS -p]} {[LIT_CHARS /mnt/ephemeral/kubernetes]}                )
                (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "/dev/vg-ephemeral/kubernetes  /mnt/ephemeral/kubernetes  ext4  noatime,nofail  0 0"]]}
                  <
                  (FilenameRedirectNode filename={[LIT_CHARS /etc/fstab]} <REDIR_DGREAT ">>"> 1),
                  >
                )
                (Com {[LIT_CHARS mount]} {[LIT_CHARS /mnt/ephemeral/kubernetes]}                )
                (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('move_kubelet', {[DQ [LIT_CHARS /mnt/ephemeral/kubernetes]]})])
              )
              (ElseTrue)
              (List
                (Com {[LIT_CHARS lvcreate]} {[LIT_CHARS -l]} {[LIT_CHARS 100] [LIT_OTHER "%"] [LIT_CHARS VG]} {[LIT_CHARS -n]} {[LIT_CHARS ephemeral]} {[LIT_CHARS vg-ephemeral]}                )
                (Com {[LIT_CHARS mkfs]} {[LIT_CHARS -t]} {[LIT_CHARS ext4]} {[LIT_CHARS /dev/vg-ephemeral/ephemeral]}                )
                (Com {[LIT_CHARS mkdir]} {[LIT_CHARS -p]} {[LIT_CHARS /mnt/ephemeral]}                )
                (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "/dev/vg-ephemeral/ephemeral  /mnt/ephemeral  ext4  noatime,nofail 0 0"]]}
                  <
                  (FilenameRedirectNode filename={[LIT_CHARS /etc/fstab]} <REDIR_DGREAT ">>"> 1),
                  >
                )
                (Com {[LIT_CHARS mount]} {[LIT_CHARS /mnt/ephemeral]}                )
                (Com {[LIT_CHARS mkdir]} {[LIT_CHARS -p]} {[LIT_CHARS /mnt/ephemeral/kubernetes]}                )
                (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('move_docker', {[DQ [LIT_CHARS /mnt/ephemeral]]})])
                (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('move_kubelet', {[DQ [LIT_CHARS /mnt/ephemeral/kubernetes]]})])
              )
            )
          )
          (ElseTrue)
          (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Ignoring unknown DOCKER_STORAGE: "][VarSub docker_storage]]}          )
        )
      )
    )
    (If
      (DBracket {B2 BINARY_STRING_EQUAL {[VarSub docker_storage]} {[DQ [LIT_CHARS btrfs]]}})
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('DOCKER_OPTS', {[DQ [VarSub DOCKER_OPTS test_op=VS_TEST_COLON_HYPHEN {}][LIT_CHARS " -s btrfs"]]})])
      (DBracket {B? LOGICAL_BINARY_OR {B2 BINARY_STRING_EQUAL {[VarSub docker_storage]} {[DQ [LIT_CHARS aufs-nolvm]]}} {B2 BINARY_STRING_EQUAL {[VarSub docker_storage]} {[DQ [LIT_CHARS aufs]]}}})
      (List
        (If
          (DBracket {B2 BINARY_STRING_EQUAL {[ComSub (Com {[LIT_CHARS lsb_release]} {[LIT_CHARS -i]} {[LIT_CHARS -s]})]} {[SQ <LIT_CHARS Ubuntu>]}})
          (Com {[LIT_CHARS apt-get-install]} {[LIT_CHARS linux-image-extra-] [ComSub (Com {[LIT_CHARS uname]} {[LIT_CHARS -r]})]} {[LIT_CHARS linux-image-extra-virtual]}          )
        )
        (Com {[LIT_CHARS apt-get-install]} {[LIT_CHARS aufs-tools]}        )
        (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('DOCKER_OPTS', {[DQ [VarSub DOCKER_OPTS test_op=VS_TEST_COLON_HYPHEN {}][LIT_CHARS " -s aufs"]]})])
      )
      (DBracket {B2 BINARY_STRING_EQUAL {[VarSub docker_storage]} {[DQ [LIT_CHARS devicemapper]]}})
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('DOCKER_OPTS', {[DQ [VarSub DOCKER_OPTS test_op=VS_TEST_COLON_HYPHEN {}][LIT_CHARS " -s devicemapper"]]})])
      (ElseTrue)
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Ignoring unknown DOCKER_STORAGE: "][VarSub docker_storage]]}      )
    )
    (If
      (DBracket {B1 UNARY_STRING_n {[DQ [VarSub move_docker]]}})
      (List
        (AndOr OP_OR_IF
          (Com {[LIT_CHARS systemctl]} {[LIT_CHARS stop]} {[LIT_CHARS docker]}          )
          (Com {[LIT_CHARS true]}          )
        )
        (If
          (DBracket {B1 UNARY_FILE_d {[LIT_CHARS /var/lib/docker]}})
          (Com {[LIT_CHARS mv]} {[LIT_CHARS /var/lib/docker]} {[VarSub move_docker] [LIT_CHARS /]}          )
        )
        (Com {[LIT_CHARS mkdir]} {[LIT_CHARS -p]} {[VarSub move_docker] [LIT_CHARS /docker]}        )
        (If
          (DBracket {B! {B1 UNARY_FILE_e {[LIT_CHARS /var/lib/docker]}}})
          (Com {[LIT_CHARS ln]} {[LIT_CHARS -s]} {[VarSub move_docker] [LIT_CHARS /docker]} {[LIT_CHARS /var/lib/docker]}          )
        )
        (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('DOCKER_ROOT', {[DQ [VarSub move_docker][LIT_CHARS /docker]]})])
        (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('DOCKER_OPTS', {[DQ [VarSub DOCKER_OPTS test_op=VS_TEST_COLON_HYPHEN {}][LIT_CHARS " -g "][VarSub DOCKER_ROOT]]})])
      )
    )
    (If
      (DBracket {B1 UNARY_STRING_n {[DQ [VarSub move_kubelet]]}})
      (List
        (If
          (DBracket {B1 UNARY_FILE_d {[LIT_CHARS /var/lib/kubelet]}})
          (Com {[LIT_CHARS mv]} {[LIT_CHARS /var/lib/kubelet]} {[VarSub move_kubelet] [LIT_CHARS /]}          )
        )
        (Com {[LIT_CHARS mkdir]} {[LIT_CHARS -p]} {[VarSub move_kubelet] [LIT_CHARS /kubelet]}        )
        (If
          (DBracket {B! {B1 UNARY_FILE_e {[LIT_CHARS /var/lib/kubelet]}}})
          (Com {[LIT_CHARS ln]} {[LIT_CHARS -s]} {[VarSub move_kubelet] [LIT_CHARS /kubelet]} {[LIT_CHARS /var/lib/kubelet]}          )
        )
        (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('KUBELET_ROOT', {[DQ [VarSub move_kubelet][LIT_CHARS /kubelet]]})])
      )
    )
  )
)