VPN tunnel for apps
-
Alright, I got the container both running and entered into the database (I'm pretty sure). So Cloudron can "see" the app. I copied the exposed and host ports to the container returned at the end of
createContainer
while nulling them during the containers initialization.That seems to be enough for app discovery, now to see if I can get the reverse proxy working which will be the last piece of the puzzle I hope.
-
Dig, Forest, Dig!
-
@marcusquinn Iām not positive but I think the Nguni reverse proxy is being fed a null or 0 hostPort. The exposedPort is part of Cloudronās environment variables. Maybe Iāll add the hostPort to that and read it back during reverse proxy configuration.
-
I hope nobody finds me logging my development on this app to be annoying. I needed a place to keep all of these new concepts in my head. Iāve never worked with Docker or Cloudron before this month and Iām trying to jot down my experiences for me to read later until I complete this.
If I hardcode the health checks to all pass. My app connected to the VPN stays connected and itās terminal working but never gets past the āStartingā phase until it times out in like ten minutes (the reverse proxy doesnāt work so neither does Letās Encrypt...which then times out the app). This is because itās reverse proxy isnāt set up correctly. I believe that the NGINX reverse proxy either gets the wrong hostPort or the wrong exposedPort or both.
Iām actually amazed that I got this far. Because both the
hostPort
does make it into the database now for it to be discoverable by Cloudron. But why the reverse proxyWriteNginxReverseConfig
receives different info than `apps.jsā āadd-to-dbā function (since that happens first) is really confusing. Iāll keep working on it though. I canāt hardcode (wellll...I technically can for the same container but donāt want to).Another problem is that my NetworkMode to container changes only (for now) take effect upon installation. Have to figure out why that is - but I also have some guesses.
Nobody told me
box
code was this hard. -
And Iām still using the appās FQDN variable to hardcode its attachment to the VPN rather than its manifest ID since I canāt find the function to read an appās manifest to get its ID.
So much more work to be done (I need the VPN clientās
containerCreate
optionexposedPort(s)
to be variable depending on its ID and the app connecting to it) - which is another reason I need to learn to use manifest data. But thatās a simple function Iām sure Iām missing somewhere. @girish - do you know it off the top of your head? -
I suddently have a doubt about what your goal is ...
Are you trying to make the app itself, when it tries to connect to an external service, use the VPN, but still be exposed through normal internet?
Or are you trying to restrict the users from accessing the app itself if they are not going through the VPN?
-
Iām trying to accomplish your first idea.
I made a Cloudron app called āOpenVPN Clientā and it works perfectly. It can connect to any OpenVPN Server. I put a basic Apache configuration in front of it just to pass the Cloudronās Health Check.
Now, my use case is to have a singular other app (any app, but Iām using the basic LAMP from the Cloudron store for testing) route all of that appās traffic through my OpenVPN Client app. I understand other users may want to connect more than one other app and itās technically possible to do so via setting their
NetworkMode
tocontainer:open-vpn-id
- but that introduces an extra complexity of exposing more than one port which Cloudron cannot do rn (but is technically possible if girish wanted to make those edits). I donāt mind though since my use case is a 1:1 OpenVPN Client + Other Cloudron app connection.Thatās the entire thing in a nutshell. Iāve had to dig into a lot of
box
code to understand how to make it happen but my OpenVPN Client app is completely working and even passes all the Cloudron health checks but the singular app connecting to it and routing all of its web traffic through it does not pass the Cloudron Healthcheck because a container connecting to the network of another container is forced to inherit all the network properties of that container. That means, the reverse proxy sees nohostPort
(Cloudron is looking for it in the wrong place) when trying to configure the app and thus literally stays in the **Starting up...ā statuses (with itās terminal working and traffic is verified routing through the OpenVPN Client). -
@Lonk sounds like you need an internal network interface for internal liveness checks and external interface for the outgoing VPN traffic and it's checks.
otherwise you're forced to check liveness on the wrong app just because it's routing through it.
-
@robi Well, the thing is. The second app should pass all the health checks just fine. Itās a web app after all that is exposed to the web (right now testing with the LAMP stackās homepage). The only reason it doesnāt pass the check (which makes Cloudron stop the container) is because Cloudron is setting up the reverse nginx config incorrectly due to it believing the Cloudron app just installed has no hostPort even though it really does.
The nginx reverse config needs to account for this to make the second app connected to the VPN Client app to even work. Because right now all I can do is use its terminal to prove its working. But the Cloudron network is setup in such a way that itās needed to reverse proxy itās
hostPort
to itsexposedPort
.My newest idea is to write the Docker randomized
hostPort
as part of the Cloudron environment variables it holds and then use that in the Nginx Reverse Proxy config if the starting app doesnāt appear to have one.Working on
box
code is harder than app code (especially because I canāt access its database outside of the command line and, well...I donāt really know SQL syntax). But shoutout to @nebulon for making it easier for me! -
This also leads to the discussion of exposedPorts in the OpenVPN Client app's side of things. Right now, it has to mirror each of it's connected containers (their can be multiple) exposed ports, but Cloudron (for good reason) has restricted app's exposed ports to one.
Dynamically assigning just the OpenVPN's exposed port(s) on demand (to logically sync up with the app that's connecting to it) is needed here and does 100% require a restart of the OpenVPN Client app unless we decide to go the route of opening
x
amount of the common ports and restricting multiple Cloudron app's from connecting to the OpenVPN Client to one exposed port per app (which ironically could be worked around with a dynamically assigned port forwarding to the real second containers port which then finally reverse proxies onto the hostPort + port 80 / 443 - but that seems like two much work just to connect more than one app perexposedPort
at a time). -
(Disclaimer: I am no expert on docker networking magic)
I think instead of trying to find a way to expose the ports from the OpenVPN container, you should instead try and find a way to make it work directly from the app container itself.
Even if you do make it work for the exposedPort (which, I think, refers to the main web port exposed by the app, the one which is behind the reverse proxy, to expose its web interface and such, that's why there's only one: there's only one web interface), you're gonna have trouble with the extra ports (the ones defined in the manifest here https://docs.cloudron.io/custom-apps/manifest/#tcpports ) for apps that use these.
-
@mehdi Well, that would only need to be a
box
discussion if we wanted more than one other Cloudron app to connect to it at a time. It'd be an interesting discussion on how to make it work with no caveats. But I personally don't see a need to have more than one container connect to the OpenVPN Client container. It's not like you can't add a secondary VPN Client Cloudron app and connect it to another app if you really need more than one VPN connection, ya know?Since that's how I'll be coding it, as soon as someone tells me how to use the
app
object inbox
to "get" the cloudron manifest ID.I'm assuming only girish or nebulon know that off the top of their head though so I'll have to reverse engineer that as soon as I figure out how to get the app passed this reverse nginx configuration barrier (which from the code looks like it's reading
hostPort
asnull
which is why no apps are working). It would be nice in that situation to know the function to get the hostPort of another container based on manifest id (my OpenVPN Client app to be exact). But once I RE those last two functions, I can do this. -
Maybe these functions exist, maybe they don't. REing is hard.
I've never really coded in Node (or used Docker) before this month so these are all new concepts to me.
-
Oh, I think the answer to my first question was really simple: app.manifest.id.
ā
ļø
Last thing is - I still need to find a way to get either container environment variables or the app object via only knowing the the cloudron manifest id. Then this should work perfectly.
-
I mean, actually that would create a possible more than one object returned scenario.
That's fine though, I'll just take the first app of that mainfest id (since more than one Cloudron app with the same manifest id can be installed simultaneously).
-
My bad, nginx is writting the
httpPort
fine and it's configuration looks perfect. I'm missing something related to nginx though because all my HTTP requests to the Cloudron app that is supposed to be routed through the OpenVPN Client app just ends in a "502 Bad Gateway". -
Other than this mysterious nginx issue (that I think has to do with the exposed port not being available somewhere
box
assumes it's supposed to be), the app will continue to work and it's terminal will run. So this is all working as it should, except for something about nginx.You know the crazy part, it's even getting an SSL cert (it must be using some DNS validation for that since the proxy isn't working).
-
@Lonk said in VPN tunnel for apps:
@p44 I built the OpenVPN Client you can use to change your IP for your app. @girish offered to add a custom feature to Cloudron specifically to allow Cloudron apps to
network connect
to my OpenVPN Client app. So, not much longer now! I might try to dive into the network code myself but I'll admit, Cloudron's base code intimidates me.@Lonk Thank's a lot this is a very good feature to use. I'm following this thread. I'll wait for first release with a good web interface
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@p44 It won't be put on the Cloudron Store without a web interface for you to change VPN credentials. That's my 1.0 "this is a finished app" final goal.
Right now, I'm just trying to make Cloudron's reverse proxy for the "app-connected-to-the-vpn-client" work correctly.
So, as it stands, reverse proxy is forwarding requests to port 80, 443 to
app.httpPort
(a randomized container port, for example 34222), and then what's supposed to happen is port "34222" is supposed to proxy to the realexposedPort
but that last step is what it's missing so I just get a "502 Bad Gateway". I can't find any references in the code to how to make the reverse proxy take thatexposedPort
from another app (the OpenVPN Client app) and use it to continue the proxy-ing. In fact, I can't even RE how official apps are doing so.This may be secret knowledge that only @girish knows and he'll have to tell me so I can fix this final proxy issue.
It's funny because I'm doing so much work in
box
right now to get this working. But I'm mainly just REinbox
code. The changes required to make the OpenVPN client work / function (which it already does...just without a web interface because I can't figure out how to proxy to it's exposedPort) - like, literally the changes tobox
amount to 5 new lines of code. I'm guessing fixing this last "proxy-to-exposed-port" issue will be a single line of code fix making the total 6 lines of code. So the changes are so simple, it's the knowledge ofbox
networking I'm lacking in. Cloudron uses an NPM library calleddockerode
to do it's Docker stuff. I thought it was the problem, but it's not - it's working just fine. It's this silly proxy issue. I'm so close...yet so far. -
Talked to @girish a little bit to confirm that the
ExposedPort
binds to theapp.httpPort
viadockerode.createContainer
magic. Soooo...there's only one solution. Usedockerode's
own library to fix this problem. How to do so...I'm not sure, time to look intodockerode's
library. But, the.run
command looks promising. -
I can't believe this whole time it wasn't a Reverse Nginx Issue.
I had a sneaking suspicion it was a
dockerode
issue but I didn't want it to be. I'm scared of making any dockerode changes. -
This is likely what I need to use (conditionally when connecting the OpenVPN Client app to another Cloudron app):
Closer than I've ever been now. But I still don't know how to use that command yet.
-
Or...or, what if I forced the
ExposedPort
to mirror thehttpPort
. That would solve the Nginx "502 Bad Gateway" issue (which is the last hurdle for a perfectly working PoC). I mean, is there really any reason for an exposed port in a Cloudron sense since it just reverse proxies all apps exposed ports to 80, 443 anyway. I think I'm going to try this first instead of the whole diving intodockerode
thing. -
Okay...there is a tiny reason. More like a medium reason. More like a BIG reason. Which is, the web apps themselves most-of-the-time choose to listen only on their exposed port (which means, I'd still need to manually proxy their exposed port to their
app.httpPort
...somehow). But I'll deal with that later. Gotta try this "mirror ports" experiment first to even see if it works.Making a PoC is more important than those logistics rn tho.
-
@Lonk what if you virtualized the exposed port? another nginx that you control?
-
@robi That's a great idea. I've thought about it before, and I'm 99% sure it would work...I just can't wrap my head around it (it's roughly what I meant in my last post when I said " I'd still need to manually proxy their exposed port to their app.httpPort...somehow").
Tbh, I think I burnt myself out because I know you're right. I mean, putting another nginx reverse proxy behind the randomized
app.httpPort
(say 32344) toproxy_pass
to an exposed port (say 8080) would so work. My brain is just having trouble processing the concept rn (as in, where I'd need to put that code since I think it would still have to be created at thebox
level). -
So, your idea is my next attempt at making the OpenVPN client universal.
Oh, and I need to find a way to make Cloudron expose all of OpenVPN Client's internal ports. Or at least the common ones - because the second app inherits the exposed ports of OpenVPN Client app (so the two apps would need to match up their exposed ports somehow, and a wildcard, open all ports on the OpenVPN Client's side seems like the only way to do so).
-
I feel like I live-blogged my entire RE and development process with this thread.
-
@Lonk said in VPN tunnel for apps:
@robi That's a great idea. I've thought about it before, and I'm 99% sure it would work...I just can't wrap my head around it.
Take a break. Please
A nap, walk, anything.
@Lonk said in VPN tunnel for apps:
So, your idea is my next attempt at making the OpenVPN client universal.
Right on!
Oh, and I need to find a way to make Cloudron expose all of OpenVPN Client's internal ports.
That means Nginx goes into the OpenVPN container, no?
Rules for reverse-proxying are something along the lines of:
if coming from internal IPs, do X
if coming from cloudron IP, do Y
if coming from elsewhere, do Z to the App. -
@robi said in VPN tunnel for apps:
That means Nginx goes into the OpenVPN container, no?
Rules for reverse-proxying are something along the lines of:
if coming from internal IPs, do X
if coming from cloudron IP, do Y
if coming from elsewhere, do Z to the App.I'm new to nginx, literally only using it's .conf files to try to get this working as a mere proof of concept. But so far I'm only familiar with
proxy_pass
for it taking incoming 80, 443 ports to pass it to the internal Docker port (and IP...I think but I don't *think this is an IP issue, though it might be). -
@robi But if I wanted to expose all of it's ports, it would actually be more of a
box
docker.js
thing with the "exposed ports" parameter being fed togContainer.createContainer
. I should be able to do that after I give my mind a lil break. -
Okay, after hardcode exposing ALL internal ports of the OpenVPN container, now the last thing is adding a second nginx reverse proxy which would mean this:
My exposedPort for the Gucamole app I'm installing to connect to the OpenVPN Client app exposes 8080. It gets a Docker internal
httpPort
of 32455. Nginx already correctly creates a nginx proxy config from web incoming port 80 and 443 to 32455 (somehow, presumably DNS TXT records, it even gets an SSL cert).So, I need to have nginx after that continue to proxy it to 8080. Which normally is Docker's job (with it's binding port) but when connecting two container's networks together, it doesn't do that job with the
dockerode
library for some Docker-y reason. I wonder...can I reverse proxy it in the same file as the original reserve proxy server. Or do I have to create a.conf
and an entirely new one? -
If I have the same nginx reverse proxy "listen" to it's own forwarded port (32455), then I could
proxy_pass
again to the real internal port and IP (8080) of Guacomole (the test app I'm now using to connect to the vpn client app)...or maybe I need another reverse proxy residing at Internal-IP-of-Guacomole:32455 to thenproxy_pass
again to 8080. -
The problem there is that the stuff in the container doesn't have access outside the container, so it's hard to drop updates to the host Nginx as another .conf file.
You could tell box to do it via how it already happens for new apps. Must be an API for it.
-
@robi I keep trying to experiment on how to shoehorn a second Ngnix proxy into this to get it all up and running 100% with no success.
Inter-communication between the two containers would be nice, but tbh I could hardcode that if I knew how to setup the second reverse nginx inside of
reverseproxy.js
. Which, honestly, I can't figure out how. -
-
I know the answer lies here:
https://git.cloudron.io/cloudron/box/-/blob/master/src/reverseproxy.js#L463
I can configure a second file for a second nginx server to proxy
app.httpPort
toapp.manifest.httpPort
- but, like, I don't know how to change that it's hardcoded to listen only on 80 and 443. Plus, I don't know how to actually get this hypothetical second nginx reverse proxy running to "take" the new config within the container that's connecting to the VPN. But that's the last step here on how to make this work. -
@mehdi said in VPN tunnel for apps:
(Disclaimer: I am no expert on docker networking magic)
I think instead of trying to find a way to expose the ports from the OpenVPN container, you should instead try and find a way to make it work directly from the app container itself.
Even if you do make it work for the exposedPort (which, I think, refers to the main web port exposed by the app, the one which is behind the reverse proxy, to expose its web interface and such, that's why there's only one: there's only one web interface), you're gonna have trouble with the extra ports (the ones defined in the manifest here https://docs.cloudron.io/custom-apps/manifest/#tcpports ) for apps that use these.
I really think this. You should try finding a way to make the app container's default route be through the OpenVPN network, but still be connected to cloudron's regular network so it can interact with nginx and stuff. There is no good reason to make all the traffic, even the local one, be through OpenVPN.
@Lonk is there a repo with your box changes ? Maybe I'll have time to take a look this WE
-
@mehdi You only have to change one file (docker.js) so Iāll send that to you today!
But the app has no other issues. It is on the Cloudron network. It has everything network-wise that the OpenVPN container has which means there are no issues anywhere. The only issue is that Nginx doesnāt take that into account because it inherits all network ports and modes from the OVPN Client itās connected to.
I actually have an idea though to prove that everything works except the web interface using the app terminal.
I will also be sending you my OVPN client in chat so you can see how it works.
-
@mehdi Thanks for your willingness to help me out. You were my inspiration for working on this. Felt right since you had to dive into
box
code to add theNET_ADMIN
capability. -
@mehdi Oh, and just to make it clear, the app is running fine even in the terminal. If I install the LAMP app for instance and connect it to the OpenVPN Client. I can go to LAMP's terminal and type
curl 127.0.0.1:80
and it will give me the LAMP Welcome page, but from the IP address of the OpenVPN Client. It'll just never get past the "Starting..." stage without a 200 response and Nginx is routing it to the wrong location. Maybe I could try hardcoding it to the right port after it installs it's config.Like, this works. But I don't know how to get NGINX to route it to the port I need it to route to. Docker is supposed to
bind
theapp.httpPort
(say 34567) to theexposedPort
(say 80). But that Docker binding command has to be removed to connect the containers so NGINX has to bind them manually somehow and I don't know how to work with Nginx. -
I'm near positive the way to route NGINX properly is to to add another reverse proxy which leads from the Docker randomized
app.http
port to theexposedPort
(AKAapp.manifest.httpPort
). I'm not sure how though. But I can clearly access the exposedPort's data from either terminal.In the terminal of either of the two network-bonded apps (the LAMP or the VPN Client) - I can curl (localhost) the exposed ports of either app (the VPN Client or the LAMP) and get back the correct HTML pages.
It's just that the reverse proxy is forwarding it to a port that Docker wasn't allowed to bind. So with no binding, that means no NGINX web page.
-
For people just joining and for me to read this in the future:
Cloudron has a user-defined network
cloudron
that it uses for all of it's apps and services. I'm connecting my OpenVPN Client app directly to another app (LAMP for testing) usingNetworkMode
which is the official way to do this. When doing so, both apps share the exact same network space (including both being connected to thecloudron
network) and can, in fact, even talk to each other directly (I need to set the OpenVPN Client's exposed port to something ridiculous like in the 50000s so it doesn't conflict with any regular app's commonly exposed ports - but in the end the OpenVPN Client will expose all of it's internal network ports-P
for compatibility with all other apps connecting to it - but for now, this will do since I'm just testing).Now, the NGINX Reverse Proxy resides on the main
box
level of Cloudron and routes to the randomized Docker binding port of the app which forwards it to it's "real" port (I honestly don't know where the IP translation takes place...I can't find it).So, solution, place a second NGINX proxy at the randomized Docker
app.http
port and have that nginx server be inside of the internal network of the LAMP testing app so it can then internally forward the web request to it'sexposedPort
which is, also, port 80 (for LAMP anyway). -
^^^^ -- Does anyone know how to do this?
-
@mehdi said in VPN tunnel for apps:
There is no good reason to make all the traffic, even the local one, be through OpenVPN.
All local traffic is local, it doesn't go through the VPN. All of the connected-to-the-vpn-client apps run indefinitely. Eventually after Cloudron says "Starting..." it switches the message to "Not Responding" but the app will continue indefinitely because there's nothing actually wrong with it. It's connecting to all the local services it needs, it's just, this feature was designed without consideration of Cloudron's network. That's why from within the app's terminal, I can access everything locally and everything externally (the open web) from Cloudron and the web sees my VPN Client's IP Address instead of Cloudrons. This is a perfectly running app. Except...I can't expose it's internal IP:ExposedPort to NGINX to have it actually pass the health check (meaning the web app isn't being routed to the right place and I think I need a second NGINX reverse proxy to get me routed to the app's exposed port). It gets as far as
app.httpPort
and then because there is no binding for theapp.mainfest.httpPort
(AKA:ExposedPort
), it just gets stuck on the web side of things.I can
curl
all I want into it the LAMP welcome. But can't access it from outside the container itself. -
Quick example of all local processes running for the second container:
Oct 02 12:05:28 2020-10-02 16:05:28,718 INFO success: redis entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)
Oct 02 12:05:28 2020-10-02 16:05:28,719 INFO success: redis-service entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)
Oct 02 12:05:40 [GET] /healthcheck
It just gets stuck at the health check because NGINX is giving it a 502 Bad Gateway since port 80 is not bound to port
app.httpPort
. That's what I still need to figure out and I think what's best is @robi's double nginx server suggestion. I just don't know how to set up NGINX inside of the LAMP container frombox
code though I'm sure it's possible. -
I still think the solution lies in this function:
https://git.cloudron.io/cloudron/box/-/blob/master/src/reverseproxy.js#L463
But that function is setting NGINX config listening on the server's public IP port. I need NGINX inside of the container to forward to the
app.manifest.httpPort
(in LAMP's case it's port 80).Or maybe it doesn't need to be inside of the container...since if I SSH into the VPS and do
curl ip-address-of-lamp:80
then it returns the HTML just fine. -
SUCCESS!!!
I'm so close. I can manually edit the NGINX configuration of the LAMP-test app and get it's web app working using it's local IP (not 127.0.0.1:
app.httpPort
, but 172.18.0.3:80 - the port 80 is what LAMP uses). Both web pages come up for their each individual domain names. WOOOO!It still doesn't make it past the "starting..." step though. That might be because I'm editing the NGINX file and then restarting the app to make it's web interface work. If the NGINX file was properly created from the beginning the check might pass.
-
Which...now I need to find the function to get the IP address of the VPN container (the app connected to it share's it's IP address).
-
@Lonk said in VPN tunnel for apps:
@mehdi said in VPN tunnel for apps:
There is no good reason to make all the traffic, even the local one, be through OpenVPN.
All local traffic is local, it doesn't go through the VPN.
Sorry, I meant: There is no good reason to make all the traffic, even the local one, be through the OpenVPN client container.
-
What you should try to achieve is making only the app's outgoing traffic go through OpenVPN, and the connexion between it and Nginx and stuff stay exactly the same as it currently is
-
@mehdi said in VPN tunnel for apps:
What you should try to achieve is making only the app's outgoing traffic go through OpenVPN, and the connexion between it and Nginx and stuff stay exactly the same as it currently is
That is currently the case as far as I can tell. All incoming traffic bypasses the VPN entirely. Outgoing traffic uses the VPN's connection. But the NGINX needs an incredibly minor change. There's no way around that.
-
But the bigger deal is that it works now!
Okay, I know it says not responding but it actually is fully working (web page and everything). The "not responding" status is something I think will fix itself when I get the Nginx IP
proxy_pass
working. Because it's sort of a race condition as to when I start the app and when I manually rewrite the Nginx IP. And I'll never go fast enough to beat the "Not responding message". -
I just need a function like
getAppByManifestId(manifestID)
- and this will be a fully functioning proof of concept. And then another function forgetLocalIPAddressByApp(app)
.Oh, and I need to change some slight NGINX config, make it more dynamic (Cloudron hardcodes it's
proxy_pass
to 127.0.0.1 rn and it needs to be dynamic). -
@girish The post above this one, do you know off the top of your head how to get those values?
-
You can't getAppByManifestId since there can be many apps for a given manifest id. I think you have to store whatever you want in the database in the apps table. Then when you get the app, you can get that information (like say the network id). Sorry, if my answer is totally off since I didn't read the full thread completely.
-
@girish I had actually nailed that issue out actually as a matter of fact. The only thing I have left is
getLocalIPAddressByApp(app)
- but maybe theapp
object already stores its internal IP (I didnāt think it did, but it stores a lot)? -
@girish As for the first function, it was mainly due to me needing to find a way to identify the VPN client app by the only unique identifier I knew. Iāve hardcoded it for my use case rn...but that wonāt work for the production version now that I think about it - so Iāll still need to get app data using the manifest.id (com.joelstickney.openvpn-client-cloudron). So when the app that needs to connect to it starts, it attaches to the container ID of the Open VPN client on
containerCreate
.Maybe right now Iāll store the things I need in ENV variables and find a way to use the āappsā object to parse through all of them till I find the VPN client.
-
@girish I think youāre right about using the app table. Iāll try to RE how you use it to populate the
apps
variable.And no worries not following along with this thread. Itās been really difficult for me to get this working so I used this as kind of note-taking. Now that Iām nearly finished, people wonāt get as bugged by my posting here every time I discover something new about the way
box
works. -
Oh wait, the container object, would contain the IP and the container ID. I could intercept that right after itās created. š§