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From: Jerome Marc <marcjero@yahoo.com>
Date: Wed, 1 Jun 2022 23:53:39 +0200
Message-ID: <CAD1Ag0x8wxh9T7KxSTJ-tAzq7nu24oHWgzdhVG4Jw2p-KJZ68Q@mail.gmail.com>
Subject: AMAZING Alpine !
To: ~alpine/users@lists.alpinelinux.org
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References: <CAD1Ag0x8wxh9T7KxSTJ-tAzq7nu24oHWgzdhVG4Jw2p-KJZ68Q.ref@mail.gmail.com>

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Hi,

I just completed my RPI setup. I started using the diskless mode but I
needed more storage so I switched to the sys mode.

The result is impressive. The RPI was laying around for few months. I
wanted to build a multi-purpose always online machine to support these
features:
-Basic SMTP relay (mainly for an aging printer that doesn't support
encryption)
-Nginx reverse proxy with SSL that will forward to applications running in
containers
-Bonjour sleep proxy service to automatically wake up server on demand
-Smart Home gateway to connect Googe home to my devices

Most of these services are up and running. I decided to use docker and
install node-red in a container. I will add a MQTT container in the future.

With everything started memory consumption is about 80Mo  including the
node-red container. My PI is a 512M model therefore it's using most of the
available memory for filesystem caching.

But the most impressive thing is the overleytmpfs mode. It's easy to enable
in the kernel command line. After restarting, the root filesystem becomes
read-only and the files updates are stored in memory. So it's fast and
power outage isn't a concern anymore. If you need to upgrade the machine
you just need to desactivate the overlay and reboot, not a big deal. Then
activate overlay again, reboot and you are safe forr the long run.

My dream was to be able to run docker images in overlay mode. Guess what
:after a bit of tuning it works !
Basically you can switch the system in rw mode, install images and launch
containers and then reboot in overlay mode. That's insane ! No risk of data
corruption or sd card wearing. I think I will write a tutorial to setup
this.

I really love Alpine because it's lightweight and keep the things simple.
It's a bit ike the 20 years old Debian releases, for simplicity and
footprint I mean. The footprint is really very  Ilow. We talk about mbytes
not gbytes. And there are unique features (diskless, overlay) that makes
the system really efficient.

THANK YOU SO MUCH for the job done.I know this place is for asking for help
when you have problems. But when everyting is working so nicely it deserves
to be said.

Jerome

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<div dir=3D"ltr">Hi,<div><br></div><div>I just completed my RPI setup. I st=
arted using the diskless mode but I needed more storage=C2=A0so I switched =
to the sys mode.</div><div><br></div><div>The result is impressive. The RPI=
 was laying around for few months. I wanted to build a multi-purpose always=
 online machine to support these features:</div><div>-Basic SMTP relay (mai=
nly for an aging printer that doesn&#39;t support encryption)</div><div>-Ng=
inx reverse proxy with SSL that will forward to applications running in con=
tainers</div><div>-Bonjour sleep proxy service to automatically wake up ser=
ver on demand</div><div>-Smart Home gateway to connect Googe home to my dev=
ices</div><div><br></div><div>Most of these services are up and running. I =
decided to use docker and install node-red in a container. I will add a MQT=
T container in the future.</div><div><br></div><div>With everything started=
 memory consumption is about 80Mo=C2=A0 including the node-red container. M=
y PI is a 512M model therefore it&#39;s using most of the available memory =
for filesystem caching.</div><div><br></div><div>But the most impressive th=
ing is the overleytmpfs mode. It&#39;s easy to enable in the kernel command=
 line. After restarting, the root filesystem becomes read-only and the file=
s updates are stored in memory. So it&#39;s fast and power outage isn&#39;t=
 a concern anymore. If you need to upgrade the machine you just need to des=
activate the overlay and reboot, not a big deal. Then activate overlay agai=
n, reboot and you are safe forr the long run.</div><div><br></div><div>My d=
ream was to be able to run docker images in overlay mode. Guess what :after=
 a bit of tuning it works !</div><div>Basically you can switch the system i=
n rw mode, install images and launch containers and then reboot in overlay =
mode. That&#39;s insane ! No risk of data corruption or sd card wearing. I =
think I will write a tutorial to setup this.</div><div><br></div><div>I rea=
lly love Alpine because it&#39;s lightweight and keep the things simple. It=
&#39;s a bit ike the 20 years old Debian releases, for simplicity and footp=
rint I mean. The footprint is really very=C2=A0 Ilow. We talk about mbytes =
not gbytes. And there are unique features (diskless, overlay) that makes th=
e system really efficient.</div><div><br></div><div>THANK YOU SO MUCH for t=
he job done.I know this place is for asking for help when you have problems=
. But when everyting is working so nicely it deserves to be said.</div><div=
><br></div><div>Jerome</div><div><br></div><div><br></div></div>

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