Re: [Libguestfs] guestfish Remote Images IPv6 Support

On Mon, Apr 01, 2019 at 08:45:48AM -0500, Jonathan Wright wrote: > Unfortunately I do need to use the address explicitly as opposed to > hostnames because the source of the data fed here is Ceph's monmap > which returns the addresses explicitly. > > I've tried all the common ways to escape the : in the v6 address to > no avail.  I definitely agree that the problem looks to be it > parsing the colons as if the port comes next and then everything > after that is args. > > Should I file a bug report?  There doesn't seem to be any way to > prevent the : from getting parsed incorrectly. Is it a bug in qemu? Anyway yes if it's a bug please file a bug report about it. Rich. > On 3/30/19 2:50 AM, Richard W.M. Jones wrote: >> On Fri, Mar 29, 2019 at 06:17:17PM -0500, Jonathan Wright wrote: >>> I have scoured the web and can't find anything on the topic: Is IPv6 >>> supported for remote image targets? >> It definitely should work, although I don't know if anyone has tried >> using the address explicitly (rather than a hostname which resolves to >> an AAAA record). >> >>> For example: >>> >>> guestfish --format=raw --ro -a >>> rbd://[fd00::cefc:1]:6789/images/CentOS-7-x86_64-GenericCloud-1901 >>> >>> Does not work citing the following: >> The important lines are these. Firstly guestfish parses the URL into >> an actual libguestfs API call, which looks fine to me: >> >>> libguestfs: trace: add_drive >>> "images/CentOS-7-x86_64-GenericCloud-1901" "readonly:true" >>> "format:raw" "protocol:rbd" "server:tcp:[fd00::cefc:1]:6789" >> This is probably where it goes wrong: >> >>> "/tmp/libguestfs3pGMi6/overlay1.qcow2" "qcow2" -1 "backingfile:rbd:images/CentOS-7-x86_64-GenericCloud-1901:mon_host=[fd00::cefc:1]\:6789:auth_supported=none" >>> "backingformat:raw" >>> libguestfs: command: run: \ -o backing_file=rbd:images/CentOS-7-x86_64-GenericCloud-1901:mon_host=[fd00::cefc:1]\:6789:auth_supported=none,backing_fmt=raw >>> libguestfs: command: run: \ /tmp/libguestfs3pGMi6/overlay1.qcow2 >>> qemu-img: /tmp/libguestfs3pGMi6/overlay1.qcow2: invalid conf option >>> :cefc:1]:6789:auth_supported: No such file or directory >>> Could not open backing image to determine size. >> The code in libguestfs is supposed to turn the guestfs_add_drive >> ‘servers’ parameter into a Ceph URL for qemu: >> >> https://github.com/libguestfs/libguestfs/blob/f79129b8dc92470e3a5597daf53... >> >> and I suppose this is being done wrong somehow (I don't have a Ceph >> server to test). >> >> At a guess I would say that it seems as if ':' characters must be >> quoted somehow (backslash?) because they are also used to separate the >> address and port number. >> >> Rich. >> > -- > Jonathan Wright > KnownHost, LLC > https://www.knownhost.com