Re: [Users] [Feedback required][host-deploy] Fedora-19 misses tar at minimal setup
Hello All, Starting the discussion again... I would like to receive feedback regarding how we should cope with a state presented to use by Fedora. Fedora-19 minimal setup does not install tar utility which is required to deploy files during the host-deploy process (Hosts-Add Host). I guess because of 2.8M in size (including translations) -- a standard commonly used utility was removed. There are three alternatives : 1. Instruct users who are using minimal installations to manually install tar utility just like they configure repository, dns, etc.. Benefit: simplicity. Benefit: use standard tools. Benefit: lower payload to transmit. Drawback: require tar at destination machine. 2. Do not use tar but self extracting python script, a patch is ready[1]. Benefit: ability to deploy environment in which tar is missing. Drawback: non standard tool at destination machine. Drawback: complexity within our code. 3. Do not use tar but cpio, a patch is ready[2]. Benefit: simplicity. Benefit: use standard tools. Benefit: lower payload to transmit. Benefit: ability to use Fedora-19 minimal. Drawback: cpio is even less common than tar, even if it exists in Fedora-19 it can be removed without anyone notice. Drawback: most other distributions will not have cpio in their minimal installation. [[[ There was 4rd alternative, using python tar module to deploy tar. However, there is a bug in that module when processing last block if empty. This is edge condition but happened to at least one of the users and I could reproduce it. ]]] What option do you prefer? Regards, Alon Bar-Lev [1] http://gerrit.ovirt.org/#/c/17295/ [2] http://gerrit.ovirt.org/#/c/17396/ ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [Users] [Feedback required][host-deploy] Fedora-19 misses tar at minimal setup
- Original Message - From: Alon Bar-Lev alo...@redhat.com To: Juan Hernandez jhern...@redhat.com Cc: engine-devel engine-de...@ovirt.org, arch a...@ovirt.org, users users@ovirt.org Sent: Sunday, July 28, 2013 1:42:58 PM Subject: Re: [Users] [Feedback required][host-deploy] Fedora-19 misses tar at minimal setup - Original Message - From: Juan Hernandez jhern...@redhat.com To: Alon Bar-Lev alo...@redhat.com Cc: engine-devel engine-de...@ovirt.org, arch a...@ovirt.org, users users@ovirt.org Sent: Sunday, July 28, 2013 12:26:56 PM Subject: Re: [Users] [Feedback required][host-deploy] Fedora-19 misses tar at minimal setup On 07/28/2013 09:46 AM, Alon Bar-Lev wrote: Hello All, I would like to receive feedback regarding how we should cope with a state presented to use by Fedora. Fedora-19 minimal setup does not install tar utility which is required to deploy files during the host-deploy process (Hosts-Add Host). I guess because of 2.8M in size (including translations) -- a standard commonly used utility was removed. There are two alternatives : 1. Instruct users who are using minimal installations to manually install tar utility just like they configure repository, dns, etc.. Benefit: simplicity. Benefit: use standard tools. Benefit: lower payload to transmit. Drawback: require tar at destination machine. 2. Do not use tar but self extracting python script, a patch is ready[1]. Benefit: ability to deploy environment in which tar is missing. Drawback: non standard tool at destination machine. Drawback: complexity within our code. [[[ There was 3rd alternative, using python tar module to deploy tar. However, there is a bug in that module when processing last block if empty. This is edge condition but happened to at least one of the users and I could reproduce it. ]]] Regards, Alon Bar-Lev Consider using cpio instead of tar. It is required to build initrd, so available in any installation. It is also supported by the library currently used in the engine to build the tar archive. Thanks Juan, it is good idea. I did not thought of using cpio, as I remembered that cpio has no embedded eof (a.cpio+b.cpio=cpio), but now I experiments and see that I was mistaken. Will try to establish a working solution. Done[1]. Thanks! host-deploy: use cpio instead of tar for bundle transfer for some reason fedora-18/19 got tar out of base system, so we are forced to find some solution, although manual configuration is required anyway (repository, networking etc...). there was attempt to use python tar module, however this module has a bug when last block is empty, so it is not suitable for usage. cpio is alternative for fedora, however it is rightfully missing from other distributions as it is much less used. as we do not support hosts using different distributions, we are ok now. in future, we can use python self extract script, work already performed at: I1e5ddab9ae87979da7d7296c4f3c7ef08e21e903 at the price of complexity. Change-Id: I1386e7d688a9ec7e28519fb407478fd17cbab4ca Signed-off-by: Alon Bar-Lev alo...@redhat.com [1] http://gerrit.ovirt.org/#/c/17396/ ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[Users] [Feedback required][host-deploy] Fedora-19 misses tar at minimal setup
Hello All, I would like to receive feedback regarding how we should cope with a state presented to use by Fedora. Fedora-19 minimal setup does not install tar utility which is required to deploy files during the host-deploy process (Hosts-Add Host). I guess because of 2.8M in size (including translations) -- a standard commonly used utility was removed. There are two alternatives : 1. Instruct users who are using minimal installations to manually install tar utility just like they configure repository, dns, etc.. Benefit: simplicity. Benefit: use standard tools. Benefit: lower payload to transmit. Drawback: require tar at destination machine. 2. Do not use tar but self extracting python script, a patch is ready[1]. Benefit: ability to deploy environment in which tar is missing. Drawback: non standard tool at destination machine. Drawback: complexity within our code. [[[ There was 3rd alternative, using python tar module to deploy tar. However, there is a bug in that module when processing last block if empty. This is edge condition but happened to at least one of the users and I could reproduce it. ]]] Regards, Alon Bar-Lev [1] http://gerrit.ovirt.org/#/c/17295/ ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [Users] [Feedback required][host-deploy] Fedora-19 misses tar at minimal setup
On 07/28/2013 09:46 AM, Alon Bar-Lev wrote: Hello All, I would like to receive feedback regarding how we should cope with a state presented to use by Fedora. Fedora-19 minimal setup does not install tar utility which is required to deploy files during the host-deploy process (Hosts-Add Host). I guess because of 2.8M in size (including translations) -- a standard commonly used utility was removed. There are two alternatives : 1. Instruct users who are using minimal installations to manually install tar utility just like they configure repository, dns, etc.. Benefit: simplicity. Benefit: use standard tools. Benefit: lower payload to transmit. Drawback: require tar at destination machine. 2. Do not use tar but self extracting python script, a patch is ready[1]. Benefit: ability to deploy environment in which tar is missing. Drawback: non standard tool at destination machine. Drawback: complexity within our code. [[[ There was 3rd alternative, using python tar module to deploy tar. However, there is a bug in that module when processing last block if empty. This is edge condition but happened to at least one of the users and I could reproduce it. ]]] Regards, Alon Bar-Lev Consider using cpio instead of tar. It is required to build initrd, so available in any installation. It is also supported by the library currently used in the engine to build the tar archive. -- Dirección Comercial: C/Jose Bardasano Baos, 9, Edif. Gorbea 3, planta 3ºD, 28016 Madrid, Spain Inscrita en el Reg. Mercantil de Madrid – C.I.F. B82657941 - Red Hat S.L. ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [Users] [Feedback required][host-deploy] Fedora-19 misses tar at minimal setup
- Original Message - From: Juan Hernandez jhern...@redhat.com To: Alon Bar-Lev alo...@redhat.com Cc: engine-devel engine-de...@ovirt.org, arch a...@ovirt.org, users users@ovirt.org Sent: Sunday, July 28, 2013 12:26:56 PM Subject: Re: [Users] [Feedback required][host-deploy] Fedora-19 misses tar at minimal setup On 07/28/2013 09:46 AM, Alon Bar-Lev wrote: Hello All, I would like to receive feedback regarding how we should cope with a state presented to use by Fedora. Fedora-19 minimal setup does not install tar utility which is required to deploy files during the host-deploy process (Hosts-Add Host). I guess because of 2.8M in size (including translations) -- a standard commonly used utility was removed. There are two alternatives : 1. Instruct users who are using minimal installations to manually install tar utility just like they configure repository, dns, etc.. Benefit: simplicity. Benefit: use standard tools. Benefit: lower payload to transmit. Drawback: require tar at destination machine. 2. Do not use tar but self extracting python script, a patch is ready[1]. Benefit: ability to deploy environment in which tar is missing. Drawback: non standard tool at destination machine. Drawback: complexity within our code. [[[ There was 3rd alternative, using python tar module to deploy tar. However, there is a bug in that module when processing last block if empty. This is edge condition but happened to at least one of the users and I could reproduce it. ]]] Regards, Alon Bar-Lev Consider using cpio instead of tar. It is required to build initrd, so available in any installation. It is also supported by the library currently used in the engine to build the tar archive. Thanks Juan, it is good idea. I did not thought of using cpio, as I remembered that cpio has no embedded eof (a.cpio+b.cpio=cpio), but now I experiments and see that I was mistaken. Will try to establish a working solution. Thanks, Alon ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
