Using the newest Windows-10 Iot-Core on a RaspberryPi, I can replace the (single) headed startup/default App via PowerShell command "IotStartup add headed" or I can use the AppXManager to achieve the same. Then I reboot, and the new default/startup headed app appears in the AppXManager as it should.
Sometime later, my Watchdog headless process (background task) then decides to reboot (using ShutdownManager.BeginShutdown(ShutdownKind.Restart, new TimeSpan(0));). After the reboot, the DEFAULT/ORIGINAL IotCoreDefaultApp is sometimes (but not always!) returned to its status as startup app and the headed startup app that I explicitly setup is not started.
How can I assure that IoT-Core does not replace my headed-startup app with the default one upon reboot? I'd prefer not to delete the IoTCoreDefaultApp permanently at this stage in development.
This appears to work now in the newest update-release of iot-core. One can either use the Device-Portal or the "iotstartup" command in powershell. Also, if required, the scripts that handle the default AppStartup are now in C:/AppInstall.
Try to use the IoT Core Dashboard App to connect to your device. And then use the admin page to select the startup App. HTH
Related
I am attempting to use the DotTrace command line tool self profile my application (I would use the NuGet, but it has a blocking bug.)
It starts up just fine. I create the dotTrace process and attach it to my application. I then use standard in to send it the "##dotTrace["start"] command. I have done this in a demo app and my real app. In the demo app, it starts profiling after that command is sent.
In my real app it responds with "##dotTrace["disconnected"... as if I had sent a ##dotTrace["disconnect"] command.
It does not give any indication why it detached, just does it as if I had requested it.
How can I figure out why detach was called?
Looks like the profiler crashed just after start. Could you please add --core-log-mask=55 to the dotTrace command line? It will generate a log file in %temp%\JetLogs. Please, share the folder JetLogs after that.
I am a little confused about start up scripts and the command line options. I am building a small raspberry pi based server for my node applications. In order to provide maximum protection against power failures and flash write corruption, the root file system is read only, and that embraces the home directory of my main user, were the production versions of my apps (two of them) are stored. Because the .pm2 directory here is no good for logs etc I currently set PM2_HOME environment variable to a place in /var (which has 512kb unused space around it to ensure writes to i. The eco-system.json file reads this environment variable also to determine where to place its logs.
In case I need to, I also have a secondary user with a read write home directory in another (protected by buffer space around it) partition. This contains development versions of my application code which because of the convenience of setting environments up etc I also want to monitor with PM2. If I need to investigate a problem I can log in to that user and run and test the application there.
Since this is a headless box, and with watchdog and kernel panic restarts built in, I want pm2 to start during boot and at minimum restart the two production apps. Ideally it should also starts the two development versions of the app also but I can live without that if its impossible.
I can switch the read only root partition to read/write - indeed it does so automatically when I ssh into my production user account. It switches back to read only automatically when I log out.
So I went to this account to try and create a startup script. It then said (unsurprisingly) that I had to run a sudo command like so:-
sudo su -c "env PATH=$PATH:/usr/local/bin pm2 startup ubuntu -u pi --hp /home/pi"
The key issue for me here is the --hp switch. I went searching for some clue as to what it means. Its clearly a home directory, but it doesn't match PM2_HOME - which is set to /var/pas in my case to take it out of the read only area. I don't want to try and and spray my home directory with files that shouldn't be there. So am asking for some guidance here
I found out by experiment what it does with an "ubuntu" start up script. It uses it to set PM2_HOME in the script by appending "/.pm2" to it.
However there is nothing stopping you editing the script once it has created it and setting PM2_HOME to whatever you want.
So effectively its a helper for the script, but only that and nothing more special.
In the webgui for defaultapp, you can click a button to start the selected app in the drop down.
What command is hidden under that button to start the universal app? I would like to do this from a remote console programatically.
Also, is the source code available for the defaultapp/webgui?
You can use PowerShell to set an app as startup, run in headless mode etc.
Find the details of connecting it with PowerShell here: https://ms-iot.github.io/content/en-US/win10/samples/PowerShell.htm
Also running in headless mode saves more memory, power, faster boot.
Also command line utils for enabling startup process:
https://ms-iot.github.io/content/en-US/win10/tools/CommandLineUtils.htm
-> Default App Sample: https://github.com/ms-iot/samples/tree/develop/IoTCoreDefaultApp
Let me know if you need anything else.
I have an application in Openshift free plan with only one gear. I want to change it to scalabe and take usage of all of 3 free gears.
I read this blog post from openshift and I found that there is a way to do it. I should clone my current application to a new one as a scalable which will use the 2 remaining gears and then I will delete the original application. Thus, the new one will have 3 free gears.
The way that blog suggest is: rhc create-app <clone> --from-app <existing> --scaling
I have the following error: invalid option --from-app
Update
After running the command gem update rhc, I don't have the error above but...A new application with the given name has created with the same starting package (Python 2.7) just like the existing one, but all the files are missing. It actually create a blank application and not a clone of the existing.
Update 2
Here is the structure of the folder:
-.git
-.openshift
-wsgi
---static
---views
---application
---main.py
-requirements.txt
-setup.py
From what we've talked on IRC, your problem was around missing SSH configuration on Windows machine:
Creating application xxx ... done
Waiting for your DNS name to be available ...done
Setting deployment configuration ... done
No system SSH available. Please use the --ssh option to specify the path to your SSH executable, or install SSH.
I've double checked it, and it appears to be working without any problem.
The only requirement is to have the latest rhc client and putty or any other
SSH client. I'd recommend going through this tutorial once again and double-check everything to make sure everything is working properly.
Make sure you are using the newest version of the rhc gem with "gem update rhc" to make sure that you have access to that feature from the command line.
The --from-app will essentially do a 'rhc snapshot save & snapshot restore` (amoung other things) as you can see here from the source:
if from_app
say "Setting deployment configuration ... "
rest_app.configure({:auto_deploy => from_app.auto_deploy, :keep_deployments => from_app.keep_deployments , :deployment_branch => from_app.deployment_branch, :deployment_type => from_app.deployment_type})
success 'done'
snapshot_filename = temporary_snapshot_filename(from_app.name)
save_snapshot(from_app, snapshot_filename)
restore_snapshot(rest_app, snapshot_filename)
File.delete(snapshot_filename) if File.exist?(snapshot_filename)
paragraph { warn "The application '#{from_app.name}' has aliases set which were not copied. Please configure the aliases of your new application manually." } unless from_app.aliases.empty?
end
However this will not copy over anything in your $OPENSHIFT_DATA_DIR directory so if you're storing files there, you'll need to copy them over manually.
I have just setup hudson and have begun playing around with it.
I have downloaded the email-ext.hpi into the the folder $HUDSON_HOME\plugins
I have restarted hudson post-step1 ( i am following this manual method as i am unable to use (for proxy setting reasons) the automatic way of installing plugins via the "Manage hudson" page.
I dont see any errors when hudson starts. In fact i see the line
INFO: Started all plugins
BUT:
When i start a project configuration page, I do not see the promised option "Editable Email Notification".
FYI:
1. I am able to setup and run few basic test builds and they run fine.
2. I am also able to configure and receive the default hudson emails for failures and subsequent successes.(This confirms the SMTP settings)
3. I was also aboe to setup the subversion tag hpi in the same way as detailed above and that works fine as well!
What am i missing? Thanks in advance for any help!
EXTRA INFO:
Hudson version - 1.379 running on Windows XP
OK - i figured out a workaround (although i still need to dig into why this is a problem). Recording here for anyone else tha tmay face this issue.
The plugin when copied into the $HUDSON_HOME\plugin was somehow not really being activeated/recognized. But when i copied it over also to C:\Documents and Settings\mylogin.hudson\plugins and restarted hudson service, voila! it worked.
If anyone knows why this might have occured, kindly record it here for reference. Thanks.
To install a plugin you should use the easy route. In Hudson, go to 'Manage Hudson' -> 'Manager Plugins' -> 'Advanced' (its a tab) and use the 'upload plugin' option.
Than follow the instructions. Usually you have to restart Hudson to actually get the plugin.
Way saver than messing around with the file system. In general the approach you had should have been correct, but there seems to be an issue with your $HUDSON_HOME. Have a look at the "Manage Hudson" -> "Configure System" page. What is the Hudson Home directory displayed on the top of the page? I don't know what Hudson does if it can't access the Home Directory? My assumption is here that Hudson runs as a service with a user account rather than the local system account and that you used a different account to copy the hpi file.
Install Maven Legacy and Maven3 plugins .