I want to write a simple mod_perl handler which returns the local time like described on this page (http://perl.apache.org/docs/2.0/user/handlers/intro.html), but where have I to locate this file to access it.
I'm using Ubuntu but don't have a directory called MyApache2. So where to locate this file to try the functionality?
This is just an example. You need to create the files yourself. (You'll see your example refers to "file:MyApache2/CurrentTime.pm").
mkdir -p example-lib/MyApache2
touch example-lib/MyApache2/CurrentTime.pm
Then paste the contents from the example into the file you just created.
In order for this to run under mod_perl, you'll also have to let the server know where your MyApache2 is located. You should be able to add something like this to your Apache config:
PerlSwitches -I/path/to/example-lib
Don't forget to restart Apache before you test this out.
Related
We let the golem package automatically create a Dockerfile for us and can run the docker image and see the app at the root directory: http://localhost:3838/?...
But we would like the app to appear in a subdirectory like http://localhost:3838/myApp/v1/?... so that we can set up the necessary proxying for Apache and have this and other apps all available from a single server.
We can manually edit the Dockerfile to copy a shiny-server.conf file with the following information:
# Define a server that listens on port 3838
server {
listen 3838;
# Define a location at the base URL
location /myApp/v1/ {
# Host the directory of Shiny Apps stored in this directory
site_dir /srv/shiny-server;
# Log all Shiny output to files in this directory
log_dir /var/log/shiny-server;
}
}
The above solution feels like a hack and we are hoping there is functionality inside of golem that will allow us to set the subdirectory at which the app will appear.
Unfortunately there is no way to include an nginx configuration inside the Dockerfile programmatically: {golem} tries to help with the creation of the file, but some things still need to be done manually.
Also, note that {golem} doesn't create a Dockerfile with a shiny server in it, it creates a standalone docker image that launches the app, so there is no shiny server running, just an R process. {shiny} being what it is, there is no way to natively run it on a given path, it's always at the root, on a port.
That being said, what you can do is either edit the dockerfile so that it also bundle nginx (or any other load balancer), so that you can serve the app on a path, or serve your application on another port, using the port argument of add_dockerfile(): that might be easier to configure it with you Apache proxy.
Colin
I am using Aspera Connect on mac to download files from a server. It works fine in terminal, but i was wondering if before i download a file, i could read its size first and then decide if i want to download it or not. I found the flag
'--precalculate-job-size'
but it's only doing that right before download and there's no way to stop the download.
The current command i use is this:
/Applications/Aspera\ Connect.app/Contents/Resources/./ascp -QT -l 200M -P33001 -i "/Applications/Aspera Connect.app/Contents/Resources/asperaweb_id_dsa.openssh" emp_ext3#fasp.ebi.ac.uk:/{asp_path} {local_path}
The resources for the flags are here:
https://download.asperasoft.com/download/docs/ascp/2.7/html/index.html
To answer your question, without going too much in the details:
If you want to display the size of an elements on an Aspera server for which you have access, you can use the command line "Amelia", see:
https://www.rubydoc.info/gems/asperalm
mlia server --url=ssh://fasp.ebi.ac.uk:33001 --username=emp_ext3 --ssh-keys=~/.aspera/mlia/aspera_bypass_dsa.pem br /10002/data/100_movie_gc.mrcs
there are plenty of options, like : --format=csv --fields=size
Note that this displays individual file sizes, but not recursive folder size.
a few other things:
You are not exactly using "Connect", but rather the "ascp" command line. Connect refers rather to the browser extension and lightweight app. while ascp is the implementation of Aspera FASP transfer protocol, found basically in all Aspera products.
the latest ascp documentation can be found here: https://www.ibm.com/support/knowledgecenter/SSL85S_3.9.6/hsts_admin_linux/dita/hsts_admin_linux_ascp_usage.html
did you know you can also use the free client:
https://downloads.asperasoft.com/en/downloads/2
it includes also ascp, but also a graphical user interface
I have created Azure Batch pool with Linux Machine and specified Application Package for the Pool.
My command line is
command='python $AZ_BATCH_APP_PACKAGE_scriptv1_1/tasks/XXX/get_XXXXX_data.py',
python3: can't open file '$AZ_BATCH_APP_PACKAGE_scriptv1_1/tasks/XXX/get_XXXXX_data.py':
[Errno 2] No such file or directory
when i connect to node and look at working directory non of the Application Package files are present there.
How do i make sure that files from Application Package are available in working directory or I can invoke/execute files under Application Package from command line ?
Make sure that your async operation have proper await in place before you start using the package in your code.
Also please share your design \ pseudo-code scenario and how you are approaching it as a design?
Further to add:
Seems like this one is pool level package.
The error seems like that the application env variable is either incorrectly used or there is some other user level issue. Please checkout linmk below and specially the section where use of env variable is mentioned.
This seems like user level issue because In case of downloading the package resource, if there will be an error it will be visible to you via exception handler or at the tool level is you are using batch explorer \ Batch-labs or code level exception handling.
https://learn.microsoft.com/en-us/azure/batch/batch-application-packages
Reason \ Rationale:
If the pool level or the task application has error, an error-list will come back if there was an error in the application package then it will be returned as the UserError or and AppPackageError which will be visible in the exception handle of the code.
Key you can always RDP into your node and checkout the package availability: information here: https://learn.microsoft.com/en-us/azure/batch/batch-api-basics#connecting-to-compute-nodes
I once created a small sample to help peeps around so this resource might help you to checkeout the use here.
Hope rest helps.
On Linux, the application package with version string is formatted as:
AZ_BATCH_APP_PACKAGE_{0}_{1}
On Windows it is formatted as:
AZ_BATCH_APP_PACKAGE_APPLICATIONID#version
Where 0 is the application name and 1 is the version.
$AZ_BATCH_APP_PACKAGE_scriptv1_1 will take you to the root folder where the application was unzipped.
Does this "exact" path exist in that location?
tasks/XXX/get_XXXXX_data.py
You can see more information here:
https://learn.microsoft.com/en-us/azure/batch/batch-application-packages
Edit: Just saw this question: "or can I invoke/execute files under Application Package from command line"
Yes you can invoke and execute files from the application package directory with the environment variable above.
If you type env on the node you will see the environment variables that have been set.
I just finished my first backend with Go using Iris framework but now I need to put it on production so I can use it in the Slack app I built.
In order to test the code locally I only run my file with go run main.go and ngrok to test with the Slack API, it's working and it's finished.
I have a droplet with Ubuntu 16.04.3 and other one with Centos 7... I was searching for something like pm2 for go, running the server and using nginx to point that port but I read that with Go it's different and I have to use something like this https://fabianlee.org/2017/05/21/golang-running-a-go-binary-as-a-systemd-service-on-ubuntu-16-04/
But that's a very long configuration for a simple server and my questions are:
Is this the usual way to config the APIs with Go?
Apart of DigitalOcean, do you recommend to use a different service to run my API?
This is really my first time with Go and I just want to learn more, I am a backend developer with Laravel and NodeJS.
You can use pm2 if you want. When you build a go project it creates a binary executable, lets say backend-server, which you can run from terminal and will start the app like this:
$ ./backend-server
If it's not executable or has permission denied issue, add the executable permission to it.
$ chmod +x backend-server
You binary should be ready to run. I like to do it with a json config file (process.json) so that I can pass extra env variables as well and don't have to type a lot in terminal.
My process.json looks something like this:
{
"apps" : [{
"name" : "backend-app",
"script" : "./backend-server",
"env": {
"DB_USER": "db_user",
"PORT": 8080
}
}]
}
Finally you can start the app using pm2 like this:
$ pm2 start process.json
More details about json config can be found in official doc
I think most people use Supervisor for this purpose, including me.
To make it very easy for you, just take a look at my Golang project, isaac-racing-server and use it as a template for yours by replacing isaac-racing-server with the name of your app. (The Supervisor files are in a subdirectory.)
I have a ZF3 project with a controller which opens excel-files and compares them with an template which will be openened, too.
On my development notebook (xampp) everything works fine, at my production system (ubuntu) the phpspreadsheet causes errors (I think it is the one).
here a snippet from my code:
$fileName="./public/files/" . $fileName; //.\ neu
echo $fileName;
$template= new Spreadsheet();
$importdcl= new Spreadsheet();
$template= \PhpOffice\PhpSpreadsheet\IOFactory::load('./public/files/Template_DCL_final.xlsx');
$importdcl= \PhpOffice\PhpSpreadsheet\IOFactory::load( $fileName);
echo "filename geladen";
I already have the folders in non relative paths because basePath() doesn't work, it won't give any result.
The echo statement is just because the server log won't give any errors. On my development system I get the echo text on my production system the error seems to be at the load statements.
First question: How could I use relative paths in here?
Second question: How can I get an idea wether is something wrong with the spreadsheet class?
This is what composer loaded:
"phpoffice/phpspreadsheet" : "dev-develop",
Is it a problem, because it has this dev version? At this point I'm quite confused because I played with the pathes of the files, I changed the rights manually in the folder, I checked server logs and now I don't have any idea left.
Here the rights in the folder:
Any helpful suggestions appreciated.
Answer (hopefully) to the first question: if your application is based on ZendSkeletonApplication, then you can use paths relative to your application root (from index.php):
/**
* This makes our life easier when dealing with paths. Everything is relative
* to the application root now.
*/
chdir(dirname(__DIR__));
So if your data files are located in <application root>/public/files, then you should be able to read them from controller/service/etc. using public/files/<file name> path. You can test it with eg. the file_exists function.
I’m unable to answer your second question, but here are some suggestions (OK, questions…):
what is the status code of your (production) server’s response?
Do you have read/write permissions to the data files from the server’s account (www-data?)?
Does phpspreadsheet depend on any PHP extensions? Do you have them installed on both your development machine and the server?
What PHP version is installed on the server? Do you or phpspreadsheet use any features that may be unavailable on that version?
Try running your project not through Apache, but with PHP’s builtin server (but don’t do it long-term) and try to reproduce the issue.