[PATCH v8 0/4] Import directly from OVA tar archive if possible
v8: - split the big patch into several commits v7: - rebased because patch 1/3 has been pushed - changes to nsplit have been dropped (2/3) - addressed Richard's comments, notably the subfolder function was moved to mllib and renamed to subdirectory v6: - just rebase v5: - rebase, patches 1,3,5 were merged - 1/3: we still need to discuss whether to detect compressed discs - 2/3: - renamed argument noempty to keep_empty - tests were not run - 3/3: - using JSON module to generate JSON (as suggested by Pino) - all the other comments raised by Pino v4: - rebase to more recent master - 1/6: using just "quote" instead of "Filename.quote" - 2/6: reformated block of code according to Richards suggestion - 4/6: added tests for nsplit v3: Addressed Pino's comments, namely: - input_ova.ml - untar takes list of paths - renamed untar_partial to untar_metadata - replaced uggly regex with nsplit - tests - test changes are part of the main commit - renamed test-data/guestfs-hashsums.sh to test-data/test-utils.sh - renamed qemu_version to qemu_is_version and moved it to test-data/test-utils.sh - normalize paths in expect files v2: - rewritten the tar invocations, the output processing is now done in OcaML rather than with a shell code; it turned out to be easier and more readable than I have feared. - added QEMU version check - addressed Pino's comments - changed tests; the expected result is now based on the QEMU used during testing This series is related to the problem of inefficient import of OVA files. The needed enhancements of QEMU were merged into the codebase and are available in QEMU 2.8. From there we can use 'size' and 'offset' options in raw driver to tell QEMU to use only subset of a file as an image. The patch set is more or less complete. The only outstanding issue is the missing detection of sparse files inside tar. But this can be done in a separate patch. As pointed out before I didn't find a way how to detect that by using the tar tool only and would probably require use of some external library. Tomáš Golembiovský (4): mllib: add subdirectory function to common_utils v2v: add function qemu_img_version to utils v2v: add function find_file_in_tar to utils v2v: ova: don't extract files from OVA if it's not needed mllib/common_utils.ml | 9 +++ mllib/common_utils.mli | 10 +++ mllib/common_utils_tests.ml | 7 ++ test-data/test-utils.sh | 19 +++++ v2v/Makefile.am | 2 + v2v/input_ova.ml | 109 +++++++++++++++++++++---- v2v/test-v2v-i-ova-formats.sh | 5 +- v2v/test-v2v-i-ova-subfolders.expected2 | 18 +++++ v2v/test-v2v-i-ova-subfolders.sh | 13 ++- v2v/test-v2v-i-ova-tar.expected | 18 +++++ v2v/test-v2v-i-ova-tar.expected2 | 18 +++++ v2v/test-v2v-i-ova-tar.ovf | 138 ++++++++++++++++++++++++++++++++ v2v/test-v2v-i-ova-tar.sh | 72 +++++++++++++++++ v2v/test-v2v-i-ova-two-disks.expected2 | 19 +++++ v2v/test-v2v-i-ova-two-disks.sh | 13 ++- v2v/utils.ml | 72 +++++++++++++++++ v2v/utils.mli | 12 +++ 17 files changed, 530 insertions(+), 24 deletions(-) create mode 100644 v2v/test-v2v-i-ova-subfolders.expected2 create mode 100644 v2v/test-v2v-i-ova-tar.expected create mode 100644 v2v/test-v2v-i-ova-tar.expected2 create mode 100644 v2v/test-v2v-i-ova-tar.ovf create mode 100755 v2v/test-v2v-i-ova-tar.sh create mode 100644 v2v/test-v2v-i-ova-two-disks.expected2 -- 2.11.0
Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> --- mllib/common_utils.ml | 9 +++++++++ mllib/common_utils.mli | 10 ++++++++++ mllib/common_utils_tests.ml | 7 +++++++ 3 files changed, 26 insertions(+) diff --git a/mllib/common_utils.ml b/mllib/common_utils.ml index e9ae6a4a2..a79abdd7e 100644 --- a/mllib/common_utils.ml +++ b/mllib/common_utils.ml @@ -236,6 +236,15 @@ end let (//) = Filename.concat let quote = Filename.quote +let subdirectory parent path = + if path = parent then + "" + else if String.is_prefix path (parent // "") then + let len = String.length parent in + String.sub path (len+1) (String.length path - len-1) + else + raise (Invalid_argument (sprintf "%S is not a path prefix of %S" parent path)) + let ( +^ ) = Int64.add let ( -^ ) = Int64.sub let ( *^ ) = Int64.mul diff --git a/mllib/common_utils.mli b/mllib/common_utils.mli index 722e528e5..977ce6576 100644 --- a/mllib/common_utils.mli +++ b/mllib/common_utils.mli @@ -116,6 +116,16 @@ val ( // ) : string -> string -> string val quote : string -> string (** Shell-safe quoting of a string (alias for {!Filename.quote}). *) +val subdirectory : string -> string -> string +(** [subdirectory parent path] returns subdirectory part of [path] relative + to the [parent]. If [path] and [parent] point to the same directory empty + string is returned. + + Note: path normalization on arguments is NOT performed! + + If [parent] is not a path prefix of [path] the function raises + [Invalid_argument]. *) + val ( +^ ) : int64 -> int64 -> int64 val ( -^ ) : int64 -> int64 -> int64 val ( *^ ) : int64 -> int64 -> int64 diff --git a/mllib/common_utils_tests.ml b/mllib/common_utils_tests.ml index 77b0524c1..aacc01e04 100644 --- a/mllib/common_utils_tests.ml +++ b/mllib/common_utils_tests.ml @@ -27,6 +27,12 @@ let assert_equal_int = assert_equal ~printer:(fun x -> string_of_int x) let assert_equal_int64 = assert_equal ~printer:(fun x -> Int64.to_string x) let assert_equal_stringlist = assert_equal ~printer:(fun x -> "(" ^ (String.escaped (String.concat "," x)) ^ ")") +let test_subdirectory ctx = + assert_equal_string "" (subdirectory "/foo" "/foo"); + assert_equal_string "" (subdirectory "/foo" "/foo/"); + assert_equal_string "bar" (subdirectory "/foo" "/foo/bar"); + assert_equal_string "bar/baz" (subdirectory "/foo" "/foo/bar/baz") + (* Test Common_utils.int_of_le32 and Common_utils.le32_of_int. *) let test_le32 ctx = assert_equal_int64 0x20406080L (int_of_le32 "\x80\x60\x40\x20"); @@ -129,6 +135,7 @@ let test_string_lines_split ctx = let suite = "mllib Common_utils" >::: [ + "subdirectory" >:: test_subdirectory; "numeric.le32" >:: test_le32; "sizes.parse_resize" >:: test_parse_resize; "sizes.human_size" >:: test_human_size; -- 2.11.0
The function returns version of qemu-img as a tuple (major, minor), or the value (0,9) in case there was an error detecting the version. Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> --- v2v/utils.ml | 21 +++++++++++++++++++++ v2v/utils.mli | 5 +++++ 2 files changed, 26 insertions(+) diff --git a/v2v/utils.ml b/v2v/utils.ml index 17ad8a29c..896e16004 100644 --- a/v2v/utils.ml +++ b/v2v/utils.ml @@ -90,3 +90,24 @@ let du filename = match lines with | line::_ -> Int64.of_string line | [] -> invalid_arg filename + +let qemu_img_version () = + let lines = external_command "qemu-img --version" in + match lines with + | [] -> error ("'qemu-img --version' returned no output") + | line :: _ -> + let rex = Str.regexp + "qemu-img version \\([0-9]+\\)\\.\\([0-9]+\\)" in + if Str.string_match rex line 0 then ( + try + int_of_string (Str.matched_group 1 line), + int_of_string (Str.matched_group 2 line) + with Failure _ -> + warning (f_"failed to parse qemu-img version(%S), assuming 0.9") + line; + 0, 9 + ) else ( + warning (f_"failed to read qemu-img version(%S), assuming 0.9") + line; + 0, 9 + ) diff --git a/v2v/utils.mli b/v2v/utils.mli index 5eacb4aec..a7f8b6e84 100644 --- a/v2v/utils.mli +++ b/v2v/utils.mli @@ -50,3 +50,8 @@ val du : string -> int64 This can raise either [Failure] or [Invalid_argument] in case of errors. *) + +val qemu_img_version : unit -> int * int +(** Returns version of qemu-img as a tuple (major, minor). + + In case of error (0,9) is returned. *) -- 2.11.0
On Sat, Feb 04, 2017 at 03:10:44PM +0100, Tomáš Golembiovský wrote:
The function returns version of qemu-img as a tuple (major, minor), or the value (0,9) in case there was an error detecting the version.
Depending on QEMU version is extremly unreliable. Vendors often stick with fairly old versions but backport important features (you at RedHat know that, don't you ;) So it's not unlikely that e.g. a number of future RHEV/RHEL releases won't use this new feature even though the included QEMU already supports it. IMO a simpler and more reliable check is to construct a command line for qemu-img that is lightweight to execute and succeeds if the option is supported or fails otherwise. [ sorry for being so late with this ] Roman.
On Mon, Feb 06, 2017 at 11:06:46AM +0300, Roman Kagan wrote:
On Sat, Feb 04, 2017 at 03:10:44PM +0100, Tomáš Golembiovský wrote:
The function returns version of qemu-img as a tuple (major, minor), or the value (0,9) in case there was an error detecting the version.
Depending on QEMU version is extremly unreliable. Vendors often stick with fairly old versions but backport important features (you at RedHat know that, don't you ;) So it's not unlikely that e.g. a number of future RHEV/RHEL releases won't use this new feature even though the included QEMU already supports it.
IMO a simpler and more reliable check is to construct a command line for qemu-img that is lightweight to execute and succeeds if the option is supported or fails otherwise.
[ sorry for being so late with this ]
Yes, I agree. My quick testing shows that the following command should be sufficent to test for the "offset" parameter: $ truncate -s1024 /tmp/test2 $ qemu-img create /tmp/test -f qcow2 -b 'json:{"offset":512,"file":{"filename":"/tmp/test2"}}' On RHEL 7.3 it fails with: qemu-img: /tmp/test: Block format 'raw' used by device '' doesn't support the option 'offset' and return code 1. (Obviously we'd have to use real temporary files) I'll see if I can make a patch ... Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://libguestfs.org
On Mon, 6 Feb 2017 15:25:53 +0000 "Richard W.M. Jones" <rjones@redhat.com> wrote:
On Mon, Feb 06, 2017 at 11:06:46AM +0300, Roman Kagan wrote:
On Sat, Feb 04, 2017 at 03:10:44PM +0100, Tomáš Golembiovský wrote:
The function returns version of qemu-img as a tuple (major, minor), or the value (0,9) in case there was an error detecting the version.
Depending on QEMU version is extremly unreliable. Vendors often stick with fairly old versions but backport important features (you at RedHat know that, don't you ;) So it's not unlikely that e.g. a number of future RHEV/RHEL releases won't use this new feature even though the included QEMU already supports it.
IMO a simpler and more reliable check is to construct a command line for qemu-img that is lightweight to execute and succeeds if the option is supported or fails otherwise.
[ sorry for being so late with this ]
Good point. I didn't think this through.
Yes, I agree. My quick testing shows that the following command should be sufficent to test for the "offset" parameter:
$ truncate -s1024 /tmp/test2 $ qemu-img create /tmp/test -f qcow2 -b 'json:{"offset":512,"file":{"filename":"/tmp/test2"}}'
On RHEL 7.3 it fails with:
qemu-img: /tmp/test: Block format 'raw' used by device '' doesn't support the option 'offset'
and return code 1.
(Obviously we'd have to use real temporary files)
No we don't. Something like this also works: qemu-img info 'json:{ "offset": 0, "file": { "filename": "/dev/null" } }' Tomas
I'll see if I can make a patch ...
Rich.
-- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://libguestfs.org
-- Tomáš Golembiovský <tgolembi@redhat.com>
On Mon, Feb 06, 2017 at 07:25:23PM +0100, Tomáš Golembiovský wrote:
No we don't. Something like this also works:
qemu-img info 'json:{ "offset": 0, "file": { "filename": "/dev/null" } }'
/dev/null has a long history of breaking qemu (although it does work at the moment), eg: https://bugzilla.redhat.com/show_bug.cgi?id=847549 Libguestfs has a workaround for this in fact: https://github.com/libguestfs/libguestfs/blob/master/lib/drives.c#L395 Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://people.redhat.com/~rjones/virt-df/
The function looks up file in tar archive and returns a tuple containing which at byte it starts and how long the file is. Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> --- v2v/utils.ml | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ v2v/utils.mli | 7 +++++++ 2 files changed, 58 insertions(+) diff --git a/v2v/utils.ml b/v2v/utils.ml index 896e16004..111dc0ea9 100644 --- a/v2v/utils.ml +++ b/v2v/utils.ml @@ -111,3 +111,54 @@ let qemu_img_version () = line; 0, 9 ) + +let find_file_in_tar tar filename = + let lines = external_command (sprintf "tar tRvf %s" (Filename.quote tar)) in + let rec loop lines = + match lines with + | [] -> raise Not_found + | line :: lines -> ( + (* Lines have the form: + * block <offset>: <perms> <owner>/<group> <size> <mdate> <mtime> <file> + *) + let elems = Str.bounded_split (Str.regexp " +") line 8 in + if List.length elems = 8 && List.hd elems = "block" then ( + let elems = Array.of_list elems in + let offset = elems.(1) in + let size = elems.(4) in + let fname = elems.(7) in + + if fname <> filename then + loop lines + else ( + let offset = + try + (* There should be a colon at the end *) + let i = String.rindex offset ':' in + if i == (String.length offset)-1 then + Int64.of_string (String.sub offset 0 i) + else + raise (Failure "colon at wrong position") + with Failure _ | Not_found -> + raise (Failure (sprintf "invalid offset returned by tar: %S" + offset)) in + + let size = + try Int64.of_string size + with Failure _ -> + raise (Failure (sprintf + "invalid size returned by tar: %S" size)) in + + (* Note: Offset is actualy block number and there is a single + * block with tar header at the beginning of the file. So skip + * the header and convert the block number to bytes before + * returning. + *) + (offset +^ 1L) *^ 512L, size + ) + ) else + raise (Failure (sprintf + "failed to parse line returned by tar: %S" line)) + ) + in + loop lines diff --git a/v2v/utils.mli b/v2v/utils.mli index a7f8b6e84..9c92d93be 100644 --- a/v2v/utils.mli +++ b/v2v/utils.mli @@ -55,3 +55,10 @@ val qemu_img_version : unit -> int * int (** Returns version of qemu-img as a tuple (major, minor). In case of error (0,9) is returned. *) + +val find_file_in_tar : string -> string -> int64 * int64 +(** [find_file_in_tar tar filename] looks up file in [tar] archive and returns + a tuple containing at which byte it starts and how long the file is. + + Function raises [Not_found] if there is no such file inside [tar] and + [Failure] if there is any error parsing the tar output. *) -- 2.11.0
We don't have to always extract all files from the OVA archive. The OVA, as defined in the standard, is plain tar. We can work directly over the tar archive if we use correct 'offset' and 'size' options when defining the backing file for QEMU. This puts much lower requirement on available disk space. Since the virt-v2v behaviour for OVA input now depends on QEMU version available this affects some of the tests. Expected result of the affected also has to depend on the QEMU used thus such tests will have two *.expected files. Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> --- test-data/test-utils.sh | 19 +++++ v2v/Makefile.am | 2 + v2v/input_ova.ml | 109 +++++++++++++++++++++---- v2v/test-v2v-i-ova-formats.sh | 5 +- v2v/test-v2v-i-ova-subfolders.expected2 | 18 +++++ v2v/test-v2v-i-ova-subfolders.sh | 13 ++- v2v/test-v2v-i-ova-tar.expected | 18 +++++ v2v/test-v2v-i-ova-tar.expected2 | 18 +++++ v2v/test-v2v-i-ova-tar.ovf | 138 ++++++++++++++++++++++++++++++++ v2v/test-v2v-i-ova-tar.sh | 72 +++++++++++++++++ v2v/test-v2v-i-ova-two-disks.expected2 | 19 +++++ v2v/test-v2v-i-ova-two-disks.sh | 13 ++- 12 files changed, 420 insertions(+), 24 deletions(-) create mode 100644 v2v/test-v2v-i-ova-subfolders.expected2 create mode 100644 v2v/test-v2v-i-ova-tar.expected create mode 100644 v2v/test-v2v-i-ova-tar.expected2 create mode 100644 v2v/test-v2v-i-ova-tar.ovf create mode 100755 v2v/test-v2v-i-ova-tar.sh create mode 100644 v2v/test-v2v-i-ova-two-disks.expected2 diff --git a/test-data/test-utils.sh b/test-data/test-utils.sh index 86a5aaf12..1c4abe392 100755 --- a/test-data/test-utils.sh +++ b/test-data/test-utils.sh @@ -54,3 +54,22 @@ do_sha256 () ;; esac } + +# Returns 0 if QEMU version is greater or equal to the arguments +qemu_is_version() { + if [ $# -ne 2 ] ; then + echo "Usage: $0 <major_version> <minor_version>" >&2 + return 3 + fi + + + [[ "$(qemu-img --version)" =~ 'qemu-img version '([0-9]+)\.([0-9]+) ]] || return 2 + QMAJ=${BASH_REMATCH[1]} + QMIN=${BASH_REMATCH[2]} + + if [ \( $QMAJ -gt $1 \) -o \( $QMAJ -eq $1 -a $QMIN -ge $2 \) ] ; then + return 0 + fi + + return 1 +} diff --git a/v2v/Makefile.am b/v2v/Makefile.am index 9189aaf12..d62ac477e 100644 --- a/v2v/Makefile.am +++ b/v2v/Makefile.am @@ -260,6 +260,7 @@ TESTS_ENVIRONMENT = $(top_builddir)/run --test TESTS = \ test-v2v-docs.sh \ + test-v2v-i-ova-tar.sh \ test-v2v-i-ova-formats.sh \ test-v2v-i-ova-gz.sh \ test-v2v-i-ova-subfolders.sh \ @@ -359,6 +360,7 @@ EXTRA_DIST += \ test-v2v-i-ova-subfolders.expected \ test-v2v-i-ova-subfolders.ovf \ test-v2v-i-ova-subfolders.sh \ + test-v2v-i-ova-tar.sh \ test-v2v-i-ova-two-disks.expected \ test-v2v-i-ova-two-disks.ovf \ test-v2v-i-ova-two-disks.sh \ diff --git a/v2v/input_ova.ml b/v2v/input_ova.ml index 40f723633..d2b48c180 100644 --- a/v2v/input_ova.ml +++ b/v2v/input_ova.ml @@ -39,17 +39,23 @@ object method source () = - let untar ?(format = "") file outdir = - let cmd = [ "tar"; sprintf "-x%sf" format; file; "-C"; outdir ] in + (* Untar part or all files from tar archive. If [paths] is specified it is + * a list of paths in the tar archive. + *) + let untar ?(format = "") ?paths file outdir = + let cmd = + [ "tar"; sprintf "-x%sf" format; file; "-C"; outdir ] + @ match paths with None -> [] | Some p -> p in if run_command cmd <> 0 then - error (f_"error unpacking %s, see earlier error messages") ova in + error (f_"error unpacking %s, see earlier error messages") ova + in (* Extract ova file. *) - let exploded = + let exploded, partial = (* The spec allows a directory to be specified as an ova. This * is also pretty convenient. *) - if is_directory ova then ova + if is_directory ova then ova, false else ( let uncompress_head zcat file = let cmd = sprintf "%s %s" zcat (quote file) in @@ -67,11 +73,35 @@ object tmpfile in + (* Untar only ovf and manifest from the archive *) + let untar_metadata ova outdir = + let files = + external_command (sprintf "tar -tf %s" (Filename.quote ova)) in + let files = + filter_map (fun f -> + if Filename.check_suffix f ".ovf" || + Filename.check_suffix f ".mf" then + Some f + else None + ) files in + untar ~paths:files ova outdir + in + match detect_file_type ova with | `Tar -> (* Normal ovas are tar file (not compressed). *) - untar ova tmpdir; - tmpdir + let qmajor, qminor = qemu_img_version () in + if qmajor > 2 || (qmajor == 2 && qminor >= 8) then ( + (* If QEMU is 2.8 or newer we don't have to extract everything. + * We can access disks inside the tar archive directly. + *) + untar_metadata ova tmpdir; + tmpdir, true + ) else ( + untar ova tmpdir; + tmpdir, false + ) + | `Zip -> (* However, although not permitted by the spec, people ship * zip files as ova too. @@ -81,7 +111,7 @@ object [ "-j"; "-d"; tmpdir; ova ] in if run_command cmd <> 0 then error (f_"error unpacking %s, see earlier error messages") ova; - tmpdir + tmpdir, false | (`GZip|`XZ) as format -> let zcat, tar_fmt = match format with @@ -94,7 +124,7 @@ object (match tmpfiletype with | `Tar -> untar ~format:tar_fmt ova tmpdir; - tmpdir + tmpdir, false | `Zip | `GZip | `XZ | `Unknown -> error (f_"%s: unsupported file format\n\nFormats which we currently understand for '-i ova' are: tar (uncompressed, compress with gzip or xz), zip") ova ) @@ -152,6 +182,7 @@ object fun mf -> debug "processing manifest %s" mf; let mf_folder = Filename.dirname mf in + let mf_subfolder = subdirectory exploded mf_folder in let chan = open_in mf in let rec loop () = let line = input_line chan in @@ -160,7 +191,11 @@ object let disk = Str.matched_group 2 line in let expected = Str.matched_group 3 line in let csum = Checksums.of_string mode expected in - try Checksums.verify_checksum csum (mf_folder // disk) + try + if partial then + Checksums.verify_checksum csum ~tar:ova (mf_subfolder // disk) + else + Checksums.verify_checksum csum (mf_folder // disk) with Checksums.Mismatched_checksum (_, actual) -> error (f_"checksum of disk %s does not match manifest %s (actual %s(%s) = %s, expected %s(%s) = %s)") disk mf mode disk actual mode disk expected; @@ -283,9 +318,25 @@ object | Some "gzip" -> true | Some s -> error (f_"unsupported compression in OVF: %s") s in - (* Does the file exist and is it readable? *) - let filename = ovf_folder // filename in - Unix.access filename [Unix.R_OK]; + let partial = + if compressed && partial then ( + (* We cannot access compressed disk inside the tar; we have to + * extract it *) + untar ~paths:[(subdirectory exploded ovf_folder) // filename] + ova tmpdir; + false + ) + else + partial in + + let filename = + if partial then + (subdirectory exploded ovf_folder) // filename + else ( + (* Does the file exist and is it readable? *) + Unix.access (ovf_folder // filename) [Unix.R_OK]; + ovf_folder // filename + ) in (* The spec allows the file to be gzip-compressed, in which case * we must uncompress it into the tmpdir. @@ -302,9 +353,39 @@ object ) else filename in + let qemu_uri = + if not partial then ( + filename + ) + else ( + let offset, size = + try find_file_in_tar ova filename + with + | Not_found -> + error (f_"file '%s' not found in the ova") filename + | Failure msg -> error (f_"%s") msg in + (* QEMU requires size aligned to 512 bytes. This is safe because + * tar also works with 512 byte blocks. + *) + let size = roundup64 size 512L in + let doc = [ + "file", JSON.Dict [ + "driver", JSON.String "raw"; + "offset", JSON.Int64 offset; + "size", JSON.Int64 size; + "file", JSON.Dict [ + "filename", JSON.String ova] + ] + ] in + let uri = + sprintf "json:%s" (JSON.string_of_doc ~fmt:JSON.Compact doc) in + debug "json: %s" uri; + uri + ) in + let disk = { s_disk_id = i; - s_qemu_uri = filename; + s_qemu_uri = qemu_uri; s_format = Some "vmdk"; s_controller = controller; } in diff --git a/v2v/test-v2v-i-ova-formats.sh b/v2v/test-v2v-i-ova-formats.sh index bd3e30ee8..0eec600eb 100755 --- a/v2v/test-v2v-i-ova-formats.sh +++ b/v2v/test-v2v-i-ova-formats.sh @@ -22,7 +22,7 @@ unset CDPATH export LANG=C set -e -formats="tar zip tar-gz tar-xz" +formats="zip tar-gz tar-xz" if [ -n "$SKIP_TEST_V2V_I_OVA_FORMATS_SH" ]; then echo "$0: test skipped because environment variable is set" @@ -63,9 +63,6 @@ cp ../test-v2v-i-ova-formats.ovf . for format in $formats; do case "$format" in - tar) - tar -cf test-$format.ova test-v2v-i-ova-formats.ovf disk1.vmdk disk1.mf - ;; zip) zip -r test test-v2v-i-ova-formats.ovf disk1.vmdk disk1.mf mv test.zip test-$format.ova diff --git a/v2v/test-v2v-i-ova-subfolders.expected2 b/v2v/test-v2v-i-ova-subfolders.expected2 new file mode 100644 index 000000000..87996d202 --- /dev/null +++ b/v2v/test-v2v-i-ova-subfolders.expected2 @@ -0,0 +1,18 @@ +Source guest information (--print-source option): + + source name: 2K8R2EESP1_2_Medium +hypervisor type: vmware + memory: 1073741824 (bytes) + nr vCPUs: 1 + CPU features: + firmware: uefi + display: + video: + sound: +disks: + json:{ "file": { "driver": "raw", "offset": 2048, "size": 10240, "file": { "filename": "test.ova" } } } (vmdk) [scsi] +removable media: + CD-ROM [ide] in slot 0 +NICs: + Network "Network adapter 1" + diff --git a/v2v/test-v2v-i-ova-subfolders.sh b/v2v/test-v2v-i-ova-subfolders.sh index 4fd1acea3..422959036 100755 --- a/v2v/test-v2v-i-ova-subfolders.sh +++ b/v2v/test-v2v-i-ova-subfolders.sh @@ -56,10 +56,17 @@ popd # normalize the output. $VG virt-v2v --debug-gc --quiet \ -i ova $d/test.ova \ - --print-source | -sed 's,[^ \t]*\(subfolder/disk.*\.vmdk\),\1,' > $d/source + --print-source > $d/source # Check the parsed source is what we expect. -diff -u test-v2v-i-ova-subfolders.expected $d/source +if qemu_is_version 2 8 ; then + # normalize the output + sed -i -e "s,\"$d/,\"," $d/source + diff -u test-v2v-i-ova-subfolders.expected2 $d/source +else + # normalize the output + sed -i -e 's,[^ \t]*\(subfolder/disk.*\.vmdk\),\1,' $d/source + diff -u test-v2v-i-ova-subfolders.expected $d/source +fi rm -rf $d diff --git a/v2v/test-v2v-i-ova-tar.expected b/v2v/test-v2v-i-ova-tar.expected new file mode 100644 index 000000000..7049aeecc --- /dev/null +++ b/v2v/test-v2v-i-ova-tar.expected @@ -0,0 +1,18 @@ +Source guest information (--print-source option): + + source name: 2K8R2EESP1_2_Medium +hypervisor type: vmware + memory: 1073741824 (bytes) + nr vCPUs: 1 + CPU features: + firmware: uefi + display: + video: + sound: +disks: + disk1.vmdk (vmdk) [scsi] +removable media: + CD-ROM [ide] in slot 0 +NICs: + Network "Network adapter 1" + diff --git a/v2v/test-v2v-i-ova-tar.expected2 b/v2v/test-v2v-i-ova-tar.expected2 new file mode 100644 index 000000000..1aa54dc37 --- /dev/null +++ b/v2v/test-v2v-i-ova-tar.expected2 @@ -0,0 +1,18 @@ +Source guest information (--print-source option): + + source name: 2K8R2EESP1_2_Medium +hypervisor type: vmware + memory: 1073741824 (bytes) + nr vCPUs: 1 + CPU features: + firmware: uefi + display: + video: + sound: +disks: + json:{ "file": { "driver": "raw", "offset": 9216, "size": 10240, "file": { "filename": "test-tar.ova" } } } (vmdk) [scsi] +removable media: + CD-ROM [ide] in slot 0 +NICs: + Network "Network adapter 1" + diff --git a/v2v/test-v2v-i-ova-tar.ovf b/v2v/test-v2v-i-ova-tar.ovf new file mode 100644 index 000000000..4827c7e9b --- /dev/null +++ b/v2v/test-v2v-i-ova-tar.ovf @@ -0,0 +1,138 @@ +<?xml version="1.0" encoding="UTF-8"?> +<Envelope vmw:buildId="build-1750787" xmlns="http://schemas.dmtf.org/ovf/envelope/1" xmlns:cim="http://schemas.dmtf.org/wbem/wscim/1/common" xmlns:ovf="http://schemas.dmtf.org/ovf/envelope/1" xmlns:rasd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_ResourceAllocationSett..." xmlns:vmw="http://www.vmware.com/schema/ovf" xmlns:vssd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_VirtualSystemSettingDa..." xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> + <References> + <File ovf:href="disk1.vmdk" ovf:id="file1" ovf:size="7804077568"/> + </References> + <DiskSection> + <Info>Virtual disk information</Info> + <Disk ovf:capacity="50" ovf:capacityAllocationUnits="byte * 2^30" ovf:diskId="vmdisk1" ovf:fileRef="file1" ovf:format="http://www.vmware.com/interfaces/specifications/vmdk.html#streamOptimized" ovf:populatedSize="18975752192"/> + </DiskSection> + <NetworkSection> + <Info>The list of logical networks</Info> + <Network ovf:name="PG-VLAN60"> + <Description>The PG-VLAN60 network</Description> + </Network> + </NetworkSection> + <VirtualSystem ovf:id="2K8R2EESP1_2_Medium"> + <Info>A virtual machine</Info> + <Name>2K8R2EESP1_2_Medium</Name> + <OperatingSystemSection ovf:id="103" vmw:osType="windows7Server64Guest"> + <Info>The kind of installed guest operating system</Info> + <Description>Microsoft Windows Server 2008 R2 (64-bit)</Description> + </OperatingSystemSection> + <VirtualHardwareSection> + <Info>Virtual hardware requirements</Info> + <System> + <vssd:ElementName>Virtual Hardware Family</vssd:ElementName> + <vssd:InstanceID>0</vssd:InstanceID> + <vssd:VirtualSystemIdentifier>2K8R2EESP1_2_Medium</vssd:VirtualSystemIdentifier> + <vssd:VirtualSystemType>vmx-10</vssd:VirtualSystemType> + </System> + <Item> + <rasd:AllocationUnits>hertz * 10^6</rasd:AllocationUnits> + <rasd:Description>Number of Virtual CPUs</rasd:Description> + <rasd:ElementName>1 virtual CPU(s)</rasd:ElementName> + <rasd:InstanceID>1</rasd:InstanceID> + <rasd:ResourceType>3</rasd:ResourceType> + <rasd:VirtualQuantity>1</rasd:VirtualQuantity> + </Item> + <Item> + <rasd:AllocationUnits>byte * 2^20</rasd:AllocationUnits> + <rasd:Description>Memory Size</rasd:Description> + <rasd:ElementName>1024MB of memory</rasd:ElementName> + <rasd:InstanceID>2</rasd:InstanceID> + <rasd:ResourceType>4</rasd:ResourceType> + <rasd:VirtualQuantity>1024</rasd:VirtualQuantity> + </Item> + <Item> + <rasd:Address>0</rasd:Address> + <rasd:Description>SCSI Controller</rasd:Description> + <rasd:ElementName>SCSI controller 0</rasd:ElementName> + <rasd:InstanceID>3</rasd:InstanceID> + <rasd:ResourceSubType>lsilogicsas</rasd:ResourceSubType> + <rasd:ResourceType>6</rasd:ResourceType> + <vmw:Config ovf:required="false" vmw:key="slotInfo.pciSlotNumber" vmw:value="160"/> + </Item> + <Item> + <rasd:Address>1</rasd:Address> + <rasd:Description>IDE Controller</rasd:Description> + <rasd:ElementName>IDE 1</rasd:ElementName> + <rasd:InstanceID>4</rasd:InstanceID> + <rasd:ResourceType>5</rasd:ResourceType> + </Item> + <Item> + <rasd:Address>0</rasd:Address> + <rasd:Description>IDE Controller</rasd:Description> + <rasd:ElementName>IDE 0</rasd:ElementName> + <rasd:InstanceID>5</rasd:InstanceID> + <rasd:ResourceType>5</rasd:ResourceType> + </Item> + <Item ovf:required="false"> + <rasd:AutomaticAllocation>false</rasd:AutomaticAllocation> + <rasd:ElementName>Video card</rasd:ElementName> + <rasd:InstanceID>6</rasd:InstanceID> + <rasd:ResourceType>24</rasd:ResourceType> + <vmw:Config ovf:required="false" vmw:key="enable3DSupport" vmw:value="false"/> + <vmw:Config ovf:required="false" vmw:key="use3dRenderer" vmw:value="automatic"/> + <vmw:Config ovf:required="false" vmw:key="useAutoDetect" vmw:value="true"/> + <vmw:Config ovf:required="false" vmw:key="videoRamSizeInKB" vmw:value="4096"/> + </Item> + <Item ovf:required="false"> + <rasd:AutomaticAllocation>false</rasd:AutomaticAllocation> + <rasd:ElementName>VMCI device</rasd:ElementName> + <rasd:InstanceID>7</rasd:InstanceID> + <rasd:ResourceSubType>vmware.vmci</rasd:ResourceSubType> + <rasd:ResourceType>1</rasd:ResourceType> + <vmw:Config ovf:required="false" vmw:key="allowUnrestrictedCommunication" vmw:value="false"/> + <vmw:Config ovf:required="false" vmw:key="slotInfo.pciSlotNumber" vmw:value="32"/> + </Item> + <Item ovf:required="false"> + <rasd:AddressOnParent>0</rasd:AddressOnParent> + <rasd:AutomaticAllocation>false</rasd:AutomaticAllocation> + <rasd:ElementName>CD/DVD drive 1</rasd:ElementName> + <rasd:InstanceID>8</rasd:InstanceID> + <rasd:Parent>4</rasd:Parent> + <rasd:ResourceSubType>vmware.cdrom.atapi</rasd:ResourceSubType> + <rasd:ResourceType>15</rasd:ResourceType> + </Item> + <Item> + <rasd:AddressOnParent>0</rasd:AddressOnParent> + <rasd:ElementName>Hard disk 1</rasd:ElementName> + <rasd:HostResource>ovf:/disk/vmdisk1</rasd:HostResource> + <rasd:InstanceID>9</rasd:InstanceID> + <rasd:Parent>3</rasd:Parent> + <rasd:ResourceType>17</rasd:ResourceType> + <vmw:Config ovf:required="false" vmw:key="backing.writeThrough" vmw:value="false"/> + </Item> + <Item> + <rasd:AddressOnParent>7</rasd:AddressOnParent> + <rasd:AutomaticAllocation>true</rasd:AutomaticAllocation> + <rasd:Connection>PG-VLAN60</rasd:Connection> + <rasd:Description>E1000 ethernet adapter on "PG-VLAN60"</rasd:Description> + <rasd:ElementName>Network adapter 1</rasd:ElementName> + <rasd:InstanceID>11</rasd:InstanceID> + <rasd:ResourceSubType>E1000</rasd:ResourceSubType> + <rasd:ResourceType>10</rasd:ResourceType> + <vmw:Config ovf:required="false" vmw:key="slotInfo.pciSlotNumber" vmw:value="33"/> + <vmw:Config ovf:required="false" vmw:key="wakeOnLanEnabled" vmw:value="true"/> + </Item> + <vmw:Config ovf:required="false" vmw:key="cpuHotAddEnabled" vmw:value="false"/> + <vmw:Config ovf:required="false" vmw:key="cpuHotRemoveEnabled" vmw:value="false"/> + <vmw:Config ovf:required="false" vmw:key="firmware" vmw:value="efi"/> + <vmw:Config ovf:required="false" vmw:key="virtualICH7MPresent" vmw:value="false"/> + <vmw:Config ovf:required="false" vmw:key="virtualSMCPresent" vmw:value="false"/> + <vmw:Config ovf:required="false" vmw:key="memoryHotAddEnabled" vmw:value="false"/> + <vmw:Config ovf:required="false" vmw:key="nestedHVEnabled" vmw:value="false"/> + <vmw:Config ovf:required="false" vmw:key="powerOpInfo.powerOffType" vmw:value="soft"/> + <vmw:Config ovf:required="false" vmw:key="powerOpInfo.resetType" vmw:value="soft"/> + <vmw:Config ovf:required="false" vmw:key="powerOpInfo.standbyAction" vmw:value="checkpoint"/> + <vmw:Config ovf:required="false" vmw:key="powerOpInfo.suspendType" vmw:value="hard"/> + <vmw:Config ovf:required="false" vmw:key="tools.afterPowerOn" vmw:value="true"/> + <vmw:Config ovf:required="false" vmw:key="tools.afterResume" vmw:value="true"/> + <vmw:Config ovf:required="false" vmw:key="tools.beforeGuestShutdown" vmw:value="true"/> + <vmw:Config ovf:required="false" vmw:key="tools.beforeGuestStandby" vmw:value="true"/> + <vmw:Config ovf:required="false" vmw:key="tools.syncTimeWithHost" vmw:value="false"/> + <vmw:Config ovf:required="false" vmw:key="tools.toolsUpgradePolicy" vmw:value="upgradeAtPowerCycle"/> + </VirtualHardwareSection> + </VirtualSystem> +</Envelope> diff --git a/v2v/test-v2v-i-ova-tar.sh b/v2v/test-v2v-i-ova-tar.sh new file mode 100755 index 000000000..c3b0588f4 --- /dev/null +++ b/v2v/test-v2v-i-ova-tar.sh @@ -0,0 +1,72 @@ +#!/bin/bash - +# libguestfs virt-v2v test script +# Copyright (C) 2014-2016 Red Hat Inc. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +# Test -i ova option with ova file compressed in different ways + +unset CDPATH +export LANG=C +set -e + +if [ -n "$SKIP_TEST_V2V_I_OVA_FORMATS_SH" ]; then + echo "$0: test skipped because environment variable is set" + exit 77 +fi + +if [ "$(guestfish get-backend)" = "uml" ]; then + echo "$0: test skipped because UML backend does not support network" + exit 77 +fi + +export VIRT_TOOLS_DATA_DIR="$srcdir/../test-data/fake-virt-tools" + +. $srcdir/../test-data/test-utils.sh + +d=test-v2v-i-ova-tar.d +rm -rf $d +mkdir $d + +pushd $d + +# Create a phony OVA. This is only a test of source parsing, not +# conversion, so the contents of the disks doesn't matter. +truncate -s 10k disk1.vmdk +sha=`do_sha1 disk1.vmdk` +echo -e "SHA1(disk1.vmdk)= $sha\r" > disk1.mf +cp ../test-v2v-i-ova-tar.ovf . +tar -cf test-tar.ova test-v2v-i-ova-tar.ovf disk1.vmdk disk1.mf + +popd + +# Run virt-v2v but only as far as the --print-source stage +$VG virt-v2v --debug-gc --quiet \ + -i ova $d/test-tar.ova \ + --print-source > $d/source + +# Check the parsed source is what we expect. +if qemu_is_version 2 8 ; then + # normalize the output + sed -i -e "s,\"$d/,\"," $d/source + diff -u test-v2v-i-ova-tar.expected2 $d/source +else + # normalize the output + sed -i -e 's,[^ \t]*\(disk.*.vmdk\),\1,' $d/source + diff -u test-v2v-i-ova-tar.expected $d/source +fi + + +rm -rf $d diff --git a/v2v/test-v2v-i-ova-two-disks.expected2 b/v2v/test-v2v-i-ova-two-disks.expected2 new file mode 100644 index 000000000..b12ca1bd6 --- /dev/null +++ b/v2v/test-v2v-i-ova-two-disks.expected2 @@ -0,0 +1,19 @@ +Source guest information (--print-source option): + + source name: 2K8R2EESP1_2_Medium +hypervisor type: vmware + memory: 1073741824 (bytes) + nr vCPUs: 1 + CPU features: + firmware: bios + display: + video: + sound: +disks: + json:{ "file": { "driver": "raw", "offset": 9728, "size": 10240, "file": { "filename": "test.ova" } } } (vmdk) [scsi] + json:{ "file": { "driver": "raw", "offset": 21504, "size": 102400, "file": { "filename": "test.ova" } } } (vmdk) [scsi] +removable media: + CD-ROM [ide] in slot 0 +NICs: + Network "Network adapter 1" + diff --git a/v2v/test-v2v-i-ova-two-disks.sh b/v2v/test-v2v-i-ova-two-disks.sh index 26dd19860..310aff1b9 100755 --- a/v2v/test-v2v-i-ova-two-disks.sh +++ b/v2v/test-v2v-i-ova-two-disks.sh @@ -60,10 +60,17 @@ popd # normalize the output. $VG virt-v2v --debug-gc --quiet \ -i ova $d/test.ova \ - --print-source | -sed 's,[^ \t]*\(disk.*.vmdk\),\1,' > $d/source + --print-source > $d/source # Check the parsed source is what we expect. -diff -u test-v2v-i-ova-two-disks.expected $d/source +if qemu_is_version 2 8 ; then + # normalize the output + sed -i -e "s,\"$d/,\"," $d/source + diff -u test-v2v-i-ova-two-disks.expected2 $d/source +else + # normalize the output + sed -i -e 's,[^ \t]*\(disk.*.vmdk\),\1,' $d/source + diff -u test-v2v-i-ova-two-disks.expected $d/source +fi rm -rf $d -- 2.11.0
On Sat, Feb 04, 2017 at 03:10:46PM +0100, Tomáš Golembiovský wrote:
We don't have to always extract all files from the OVA archive. The OVA, as defined in the standard, is plain tar. We can work directly over the tar archive if we use correct 'offset' and 'size' options when defining the backing file for QEMU. This puts much lower requirement on available disk space.
Since the virt-v2v behaviour for OVA input now depends on QEMU version available this affects some of the tests. Expected result of the affected also has to depend on the QEMU used thus such tests will have two *.expected files.
Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com>
This commit (I think) breaks virt-v2v when run with the libvirt backend using an OVA input file. The error from v2v/test-v2v-i-ova.sh is: Original error from libvirt: internal error: missing parser implementation for JSON backing volume driver 'raw' [code=1 int1=-1] which I think is caused because libvirt doesn't understand a backing file with the format 'json:{"driver":"raw",...}'. Full log is attached. This is similar but not exactly the same as this bug: https://bugzilla.redhat.com/show_bug.cgi?id=1134878 I have added a workaround in the test for now, but please look at whether this can be fixed more permanently. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 100 libraries supported. http://fedoraproject.org/wiki/MinGW
I will push these in an hour or two after the slow tests have run. Note that I have made a few (only stylistic) changes to your commits, so if you `git pull --rebase' then you will see conflicts. Thanks for this important contribution to virt-v2v. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://people.redhat.com/~rjones/virt-top
participants (3)
-
Richard W.M. Jones -
Roman Kagan -
Tomáš Golembiovský