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aktos-io / dcs-tools

Tools for making remote Linux node management easy
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Novice needing clarification on ./setup #11

Closed motioncircus closed 6 years ago

motioncircus commented 6 years ago

Direct connection settings:

NODE_IP Is the IP address of the Raspberry Pi or the machine connecting to it? MOUNT_DIR=$(mktemp -d) what is this?

ceremcem commented 6 years ago

NODE is the target "Raspberry Pi" (or more generally, the target Linux machine). Thus, NODE_IP is the IP address of the machine you want to connect to.

MOUNT_DIR variable exists for optional mount location for sshfs. The reason behind this option is that if you mount your target to a regular directory somewhere in your project folder (eg. /home/you/myprojects/remote-x/NODE) and leave it mounted, chances are you will make your (hourly) PC backups before unmounting it. Which will lead starting to backup whole target machine erroneously. That's why this variable lets you mount your target machine (the NODE) to a randomly named temporary directory (in /tmp) and create a symlink to it from your project directory.

Any naming suggestions are welcome.

motioncircus commented 6 years ago

Thanks Cerem,

I have to go out on a shoot now but I'll try and follow your directions in the morning.

Have a great day!

N

Nigel Haslam | Director

Motion Circus Pty Ltd. Byron Bay t: + 61 2 8007 7338 |m: + 61 403 020 126 w: www.motioncircus.com http://www.motioncircus.com/ link to website http://motioncircus.com

On Wed, Oct 25, 2017 at 5:19 PM, Cerem Cem ASLAN notifications@github.com wrote:

NODE is the target "Raspberry Pi" (or more generally, the target Linux machine). Thus, NODE_IP is the IP address of the machine you want to connect to.

MOUNT_DIR variable exists for optional mount location for sshfs. The reason behind this option is that if you mount your target to a regular directory somewhere in your project folder (eg. /home/you/myprojects/remote-x/NODE) and leave it mounted, chances are you will make your (hourly) PC backups before unmounting it. Which will lead starting to backup whole target machine erroneously. That's why this variable lets you mount your target machine (the NODE) to a randomly named temporary directory (in /tmp) and create a symlink to it from your project directory.

Any naming suggestions are welcome.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/aktos-io/dcs-tools/issues/11#issuecomment-339226438, or mute the thread https://github.com/notifications/unsubscribe-auth/AIQ3E_cmAWBbWEkX_G7z4piP6G2GLfDaks5svtLkgaJpZM4QFeRi .

motioncircus commented 6 years ago

Hi,

Sorry, I missed this email this morning when I first replied.

So when you say hourly PC backups, you are talking about the back up routine of your local, laptop machine, which, if it had the remote (NODE / target / RaspberryPi) mounted, as a local drive, your PC backup would think that it had to back up the remote NODE as well, because it would simply see it as another folder?

I'm grasping a little here but it kind of make sense. I'm not familiar with symlinks though, they sound like 'pointers' to data, rather than the data itself. Which makes me think that if the randomly named temporary directory was removed. then the symlink pointer would be pointing at nothing. Are your hourly backup systems configured to ignore the tmp folder?

Cheers

Nigel

Nigel Haslam | Director

Motion Circus Pty Ltd. Byron Bay t: + 61 2 8007 7338 |m: + 61 403 020 126 w: www.motioncircus.com http://www.motioncircus.com/ link to website http://motioncircus.com

On Wed, Oct 25, 2017 at 5:19 PM, Cerem Cem ASLAN notifications@github.com wrote:

NODE is the target "Raspberry Pi" (or more generally, the target Linux machine). Thus, NODE_IP is the IP address of the machine you want to connect to.

MOUNT_DIR variable exists for optional mount location for sshfs. The reason behind this option is that if you mount your target to a regular directory somewhere in your project folder (eg. /home/you/myprojects/remote-x/NODE) and leave it mounted, chances are you will make your (hourly) PC backups before unmounting it. Which will lead starting to backup whole target machine erroneously. That's why this variable lets you mount your target machine (the NODE) to a randomly named temporary directory (in /tmp) and create a symlink to it from your project directory.

Any naming suggestions are welcome.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/aktos-io/dcs-tools/issues/11#issuecomment-339226438, or mute the thread https://github.com/notifications/unsubscribe-auth/AIQ3E_cmAWBbWEkX_G7z4piP6G2GLfDaks5svtLkgaJpZM4QFeRi .

motioncircus commented 6 years ago

I just logged a new issue about symlinks.. I'm afraid they may be a showstopper for PC jockeys like me:(

Tell me it ain't so

N

Nigel Haslam | Director

Motion Circus Pty Ltd. Byron Bay t: + 61 2 8007 7338 |m: + 61 403 020 126 w: www.motioncircus.com http://www.motioncircus.com/ link to website http://motioncircus.com

On Thu, Oct 26, 2017 at 1:41 PM, Nigel Haslam nigelhaslam@gmail.com wrote:

Hi,

Sorry, I missed this email this morning when I first replied.

So when you say hourly PC backups, you are talking about the back up routine of your local, laptop machine, which, if it had the remote (NODE / target / RaspberryPi) mounted, as a local drive, your PC backup would think that it had to back up the remote NODE as well, because it would simply see it as another folder?

I'm grasping a little here but it kind of make sense. I'm not familiar with symlinks though, they sound like 'pointers' to data, rather than the data itself. Which makes me think that if the randomly named temporary directory was removed. then the symlink pointer would be pointing at nothing. Are your hourly backup systems configured to ignore the tmp folder?

Cheers

Nigel

Nigel Haslam | Director

Motion Circus Pty Ltd. Byron Bay t: + 61 2 8007 7338 <+61%202%208007%207338> |m: + 61 403 020 126 <+61%20403%20020%20126> w: www.motioncircus.com http://www.motioncircus.com/ link to website http://motioncircus.com

On Wed, Oct 25, 2017 at 5:19 PM, Cerem Cem ASLAN <notifications@github.com

wrote:

NODE is the target "Raspberry Pi" (or more generally, the target Linux machine). Thus, NODE_IP is the IP address of the machine you want to connect to.

MOUNT_DIR variable exists for optional mount location for sshfs. The reason behind this option is that if you mount your target to a regular directory somewhere in your project folder (eg. /home/you/myprojects/remote-x/NODE) and leave it mounted, chances are you will make your (hourly) PC backups before unmounting it. Which will lead starting to backup whole target machine erroneously. That's why this variable lets you mount your target machine (the NODE) to a randomly named temporary directory (in /tmp) and create a symlink to it from your project directory.

Any naming suggestions are welcome.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/aktos-io/dcs-tools/issues/11#issuecomment-339226438, or mute the thread https://github.com/notifications/unsubscribe-auth/AIQ3E_cmAWBbWEkX_G7z4piP6G2GLfDaks5svtLkgaJpZM4QFeRi .

ceremcem commented 6 years ago

Closed by https://github.com/aktos-io/dcs-tools/blob/master/doc/configuration.md