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From bb04eba9683c4143f9b5880238f006af3b13c05c Mon Sep 17 00:00:00 2001
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From: Pino Toscano <ptoscano@redhat.com>
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Date: Thu, 12 Sep 2019 14:17:36 +0200
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Subject: [PATCH] v2v: -o rhv-upload: change precheck script to return a JSON
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This way it is possible to communicate data from the precheck script
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back to virt-v2v.
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For now there are no results, so the resulting JSON is discarded.
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(cherry picked from commit cc6e2a7f9ea53258c2edb758e3ec9beb7baa1fc6)
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---
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v2v/output_rhv_upload.ml | 8 +++++++-
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v2v/rhv-upload-precheck.py | 6 +++++-
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2 files changed, 12 insertions(+), 2 deletions(-)
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diff --git a/v2v/output_rhv_upload.ml b/v2v/output_rhv_upload.ml
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index adcbdf25f..fd6f2e3e6 100644
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--- a/v2v/output_rhv_upload.ml
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+++ b/v2v/output_rhv_upload.ml
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@@ -234,8 +234,14 @@ object
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error_unless_nbdkit_python_plugin_working ();
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error_unless_output_alloc_sparse ();
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(* Python code prechecks. *)
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- if Python_script.run_command precheck_script json_params [] <> 0 then
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+ let precheck_fn = tmpdir // "v2vprecheck.json" in
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+ let fd = Unix.openfile precheck_fn [O_WRONLY; O_CREAT] 0o600 in
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+ if Python_script.run_command ~stdout_fd:fd
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+ precheck_script json_params [] <> 0 then
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error (f_"failed server prechecks, see earlier errors");
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+ let json = JSON_parser.json_parser_tree_parse_file precheck_fn in
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+ debug "precheck output parsed as: %s"
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+ (JSON.string_of_doc ~fmt:JSON.Indented ["", json]);
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if have_selinux then
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error_unless_nbdkit_compiled_with_selinux ()
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diff --git a/v2v/rhv-upload-precheck.py b/v2v/rhv-upload-precheck.py
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index d6a58f0fc..de8a66c05 100644
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--- a/v2v/rhv-upload-precheck.py
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+++ b/v2v/rhv-upload-precheck.py
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@@ -70,4 +70,8 @@ if len(clusters) == 0:
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raise RuntimeError("The cluster ‘%s’ does not exist" %
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(params['rhv_cluster']))
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-# Otherwise everything is OK, exit with no error.
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+# Otherwise everything is OK, print a JSON with the results.
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+results = {
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+}
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+
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+json.dump(results, sys.stdout)
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--
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2.18.4
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