mirror of
https://github.com/containers/podman
synced 2024-10-20 17:23:30 +00:00
a6046dceef
Docker does not support this, and it is confusing what to do if the image has more then one tag. We are dropping support for this in podman 3.0 Fixes: https://github.com/containers/podman/issues/7387 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
172 lines
5.2 KiB
Bash
172 lines
5.2 KiB
Bash
#!/usr/bin/env bats -*- bats -*-
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#
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# tests for podman load
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#
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load helpers
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# Custom helpers for this test only. These just save us having to duplicate
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# the same thing four times (two tests, each with -i and stdin).
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#
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# initialize, read image ID and name
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get_iid_and_name() {
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run_podman images -a --format '{{.ID}} {{.Repository}}:{{.Tag}}'
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read iid img_name < <(echo "$output")
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archive=$PODMAN_TMPDIR/myimage-$(random_string 8).tar
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}
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# Simple verification of image ID and name
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verify_iid_and_name() {
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run_podman images -a --format '{{.ID}} {{.Repository}}:{{.Tag}}'
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read new_iid new_img_name < <(echo "$output")
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# Verify
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is "$new_iid" "$iid" "Image ID of loaded image == original"
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is "$new_img_name" "$1" "Name & tag of restored image"
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}
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@test "podman save to pipe and load" {
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# Generate a random name and tag (must be lower-case)
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local random_name=x0$(random_string 12 | tr A-Z a-z)
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local random_tag=t0$(random_string 7 | tr A-Z a-z)
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local fqin=localhost/$random_name:$random_tag
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run_podman tag $IMAGE $fqin
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# Believe it or not, 'podman load' would barf if any path element
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# included a capital letter
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archive=$PODMAN_TMPDIR/MySubDirWithCaps/MyImage-$(random_string 8).tar
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mkdir -p $(dirname $archive)
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# We can't use run_podman because that uses the BATS 'run' function
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# which redirects stdout and stderr. Here we need to guarantee
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# that podman's stdout is a pipe, not any other form of redirection
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$PODMAN save --format oci-archive $fqin | cat >$archive
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if [ "$status" -ne 0 ]; then
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die "Command failed: podman save ... | cat"
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fi
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# Make sure we can reload it
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run_podman rmi $fqin
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run_podman load -i $archive
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# FIXME: cannot compare IID, see #7371, so we check only the tag
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run_podman images $fqin --format '{{.Repository}}:{{.Tag}}'
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is "$output" "$fqin" "image preserves name across save/load"
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# Load with a new tag
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local new_name=x1$(random_string 14 | tr A-Z a-z)
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local new_tag=t1$(random_string 6 | tr A-Z a-z)
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run_podman rmi $fqin
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run_podman load -i $archive
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run_podman images --format '{{.Repository}}:{{.Tag}}' --sort tag
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is "${lines[0]}" "$IMAGE" "image is preserved"
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is "${lines[1]}" "$fqin" "image is reloaded with old fqin"
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# Clean up
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run_podman rmi $fqin
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}
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@test "podman load - by image ID" {
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# FIXME: how to build a simple archive instead?
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get_iid_and_name
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# Save image by ID, and remove it.
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run_podman save $iid -o $archive
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run_podman rmi $iid
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# Load using -i; IID should be preserved, but name is not.
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run_podman load -i $archive
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verify_iid_and_name "<none>:<none>"
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# Same as above, using stdin
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run_podman rmi $iid
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run_podman load < $archive
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verify_iid_and_name "<none>:<none>"
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# Same as above, using stdin but with `podman image load`
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run_podman rmi $iid
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run_podman image load < $archive
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verify_iid_and_name "<none>:<none>"
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# Cleanup: since load-by-iid doesn't preserve name, re-tag it;
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# otherwise our global teardown will rmi and re-pull our standard image.
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run_podman tag $iid $img_name
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}
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@test "podman load - by image name" {
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get_iid_and_name
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run_podman save $img_name -o $archive
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run_podman rmi $iid
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# Load using -i; this time the image should be tagged.
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run_podman load -i $archive
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verify_iid_and_name $img_name
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run_podman rmi $iid
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# Also make sure that `image load` behaves the same.
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run_podman image load -i $archive
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verify_iid_and_name $img_name
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run_podman rmi $iid
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# Same as above, using stdin
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run_podman load < $archive
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verify_iid_and_name $img_name
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}
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@test "podman load - will not read from tty" {
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if [ ! -t 0 ]; then
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skip "STDIN is not a tty"
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fi
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run_podman 125 load
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is "$output" \
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"Error: cannot read from terminal. Use command-line redirection" \
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"Diagnostic from 'podman load' without redirection or -i"
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}
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@test "podman load - multi-image archive" {
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img1="quay.io/libpod/testimage:00000000"
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img2="quay.io/libpod/testimage:20200902"
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archive=$PODMAN_TMPDIR/myimage-$(random_string 8).tar
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run_podman pull $img1
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run_podman pull $img2
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run_podman save -m -o $archive $img1 $img2
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run_podman rmi -f $img1 $img2
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run_podman load -i $archive
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run_podman image exists $img1
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run_podman image exists $img2
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run_podman rmi -f $img1 $img2
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}
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@test "podman load - multi-image archive with redirect" {
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img1="quay.io/libpod/testimage:00000000"
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img2="quay.io/libpod/testimage:20200902"
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archive=$PODMAN_TMPDIR/myimage-$(random_string 8).tar
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run_podman pull $img1
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run_podman pull $img2
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# We can't use run_podman because that uses the BATS 'run' function
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# which redirects stdout and stderr. Here we need to guarantee
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# that podman's stdout is a pipe, not any other form of redirection
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$PODMAN save -m $img1 $img2 | cat >$archive
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if [ "$status" -ne 0 ]; then
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die "Command failed: podman save ... | cat"
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fi
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run_podman rmi -f $img1 $img2
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run_podman load -i $archive
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run_podman image exists $img1
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run_podman image exists $img2
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run_podman rmi -f $img1 $img2
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}
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# vim: filetype=sh
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