I am new to stack I have been trying to learn MEAN Stack but unable to install it on Cent OS 7. I have a system with the following configurations
1. i7 Proccessor
2. 12 GB RAM
3. 512 GB Hard Disk
You will have to add yum repository of node.js to the system by running the following commands in succession to add the yum repository.
# yum install -y gcc-c++ make
# curl -sL https://rpm.nodesource.com/setup_6.x | sudo -E bash -
Then install nodejs using
# yum install nodejs
This will also install npm for you, now you're good to go for using nodejs and express (E and N of MEAN stack)
You also need to setup mongodb if that is what you need to use as database ideally MEAN stack uses mongodb for that please follow their official documentation Here is the link to it. That takes care of M of MEAN stack.
Now for the A part you need Angular I would suggest you look at the versions of Angular available and based on it choose how to set it up they have pretty good documentation. You can choose from AngularJS, Angular 2 or Angular 4.
Hope this helps.
Related
i need help. currently i want to use PHP redis on my macOS from this repo https://github.com/phpredis/phpredis
because there are many error when i direct clone from that repository, i decided to choose install the phpredis use MacPorts.
my specification mac is
macOS Cataline v 10.15.7
PHP 7.3.11
i'm using XAMPP 7.4.12
after i install the macPorts i did run this command
sudo port install php73-redis
the installation was good and no error. after that i restart my apache and also restart my mac.. but when i check on phpinfo() no function redis..
i also check on my file /opt/local/var/db/php73/redis.ini also contain extension=redis.so
what is missing from my steps? i still not able to set the PHPredis after that. please help
I am not able to install the package odl-dlux-all on the Ubuntu 16.04 machine. Following is the error message
Error executing command: Can't install feature odl-dlux-all/0.0.0:
null
VM : Ubuntu 16.04
Opendaylight version : Carbon
What is the issue?
Should i install gnome-desktop for this?
Prat,
This is what I have found. It looks like you and I were in the same boat. I ran into this issue, also. After additional searching, I found that ODL's website has a guide for the DLUX features.
These are the features I installed and it got me where I needed:
odl-dlux-core
odl-dluxapps-nodes
odl-dluxapps-topology
odl-dluxapps-yangui
odl-dluxapps-yangvisualizer
odl-dluxapps-yangman
Be sure you enter them as separate commands using the feature:install command prior to each of them.
I found the guide on ODL's website HERE.
I hope this helps!! :)
The way OpenDaylight's DLUX features are structured was changed in Carbon. Application-specific logic was broken out into odl-dluxapps-* Karaf features for easier maintenance.
Install and start OpenDaylight:
sudo dnf install -y http://cbs.centos.org/repos/nfv7-opendaylight-70-release/x86_64/os/Packages/opendaylight-7.0.0-1.el7.noarch.rpm
sudo systemctl start opendaylight
Connect to the Karaf shell (make take a moment for Karaf's SSH server to come up):
ssh -p 8101 karaf#localhost
# password: karaf
See the available DLUX features:
opendaylight-user#root>feature:list | grep dluxapps
odl-dluxapps-yangutils
odl-dluxapps-yangui
odl-dluxapps-topology
odl-dluxapps-yangvisualizer
odl-dluxapps-applications
odl-dluxapps-yangman
odl-dluxapps-nodes
features-dluxapps
Install the ones you're interested in:
opendaylight-user#root>feature:install odl-dluxapps-topology
In a browser on the same machine:
http://localhost:8181/index.html#/yangui/index
Login with admin/admin and things should work.
Here are the DLUX docs.
Note that DLUX isn't widely used by ODL developers, and isn't packaged as a product by vendors. Most people use the REST API directly to query OpenDaylight. There are REST API examples in the NetVirt Postman Collection, as an example.
It is true. You have to install all dlux features manually.
The Change against ODL Boron is, that Carbon removed feature odl-dlux-all. And in Carbon odl-dlux-core installs only core and nothing more. I had always gray login page in DLUX WEB login, there was nothing, only blank gray page.
I suggest you to use command: feature:list | grep dlux
This will create for you complete list of available DLUX features. And You have to install all of them.
After you finish installation of DLUX use same command with parameter -i which will show you only succesfully installed features:
feature:list -i | grep dlux
so you will see the result.
Don't forget that after instalation Dlux needs a few minutes to be fully ready. If you try to login to dlux during this time, you can get ERROR403 but also login page will not accept the credentials even they are correct. So be patient and wait.
+----------------------------------------------------------------------+
DOCUMENTATION OF OPENDAYLIGHT
IS HORIBBLE AND SOMETIMES PURELY WRONG
+----------------------------------------------------------------------+
The dronekit Getting Started page suggests installing WinPython to use dronekit-Python on Windows because it includes the dependencies. I already have a working Python installation and I prefer not to risk messing it up with WinPython. What are the dependencies I need to install?
As of DKPY 2.0 this is outdated. Also, I might move to making a MavProxy module depending on whether or not the unpaid devs decide to stay when 3DR stops funding Dronekit
I've written a procedure to help with this problem which I've pasted. 3DR claims they're going to fix it, but in the mean time I hope this will help.
This setup is for Windows 64-bit systems only, although similar procedures will work with 32-bit.
Install MAVProxy and run it once before reaching step 5.
Install Notepad++.
Install Python v2.7.
Inside the Python folder, run WinPython Control Panel and select Advanced->Register Python.
Inside the same folder, run WinPython Command Prompt and input the following four commands:
• pip uninstall python-dateutil
• pip install droneapi
• pip install console
• echo module load droneapi.module.api >> %HOMEPATH%\AppData\Local\MAVProxy\mavinit.scr
Install WX Python. It should be the 64-bit Python 2.7 version.
Download and install OpenCV 2.4.11 to any folder
• Copy/paste the file cv2.pyd from OpenCV\build\python\2.7\x64\ to \python-2.7.6.amd64\Lib\site-packages.
Steps 8 through 11 apply to SITL only
Follow the online documentation for setting up Cygwin for SITL in Windows
Go to C:\cygwin\home\Your Username\ardupilot\Tools\autotest\
Open sim_vehicle.sh in Notepad++
• Change line 429 from…
cygstart -w "/cygdrive/c/Program Files (x86)/MAVProxy/mavproxy.exe" $options --cmd="$extra_cmd" $*
to...
cygstart -w "/cygdrive/c/Users/YOUR USERNAME HERE/Desktop/WinPython-64bit-2.7.6.4/python-2.7.6.amd64/Dronekit/Scripts/mavproxy.py" $options --cmd="$extra_cmd" $*
Note: This location changes depending on where you installed WinPython. For me, it was the desktop.
Start simulations as you would normally for SITL. To run Python scripts during the simulations, use the command
• api start Path to script\script_name
To use the code to connect to an actual copter, open WinPython Command Prompt
• Navigate to the folder which contains the scripts you wish to test
• Type mavproxy.py --master=”com##”,57600
• Run your script by typing into the MAVProxy terminal
o api start script_name
On the Yesod homepage (http://www.yesodweb.com/page/quickstart) the following installation sequence is suggested:
wget http://www.stackage.org/lts/cabal.config
cabal update # download package list
cabal install alex happy yesod-bin # install build tools
yesod init --bare # answer questions as prompted
cabal sandbox init # set up a sandbox
cabal install --run-tests # install libraries
yesod devel # launch devel server
My question is:
why is "cabal sandbox init" not directly after "cabal update"?
In the suggested way alex happy yesod-bin are all installed in the global space instead of inside the sandbox.
Thanks,
Alex.
Because it generally confuses people when they can't run yesod directly; installing the executables into ~/.cabal/bin means that the user can always access them. It does leak some information outside of the sandbox, but it's typically the right trade-off to take.
I would like to have Drush on Hostgator shared hosting. I just spent 1 hour trying various outdated tutorials (Drush now requires composer). Does somebody have proved, tested and working solution how to install Drush there? I'm using PHP 5.4.
My last achieved step is drush st error:
Unable to load autoload.php. Drush now requires Composer in order to install its dependencies and autoload classes. Please see README.md
Content-type: text/html
When I run php composer.phar diagnose I see:
Content-type: text/html
Warning: Composer should be invoked via the CLI version of PHP, not the cgi-fcgi SAPI
Checking platform settings: OK
Checking git settings: OK
Checking http connectivity: OK
Checking disk free space: OK
Checking composer version: OK
Incase it helps others, I had been using a variety of google inspired resources to install Drush, which just complicated the situation for me. I would highly recommend following the official documentation which is the main source of information. I even read on there that they only maintain the documentation here, not even on drupal.org.
I was missing this step based on other instructions,
Now add Drush to your system path by placing export
PATH="$HOME/.composer/vendor/bin:$PATH"
into your ~/.bash_profile (Mac OS users) or into your ~/.bashrc (Linux users).
These instructions helped me resolve the error:
curl -sS https://getcomposer.org/installer | php mv composer.phar
/usr/local/bin/composer ln -s /usr/local/bin/composer
/usr/bin/composer
git clone https://github.com/drush-ops/drush.git /usr/local/src/drush
cd /usr/local/src/drush git checkout 7.0.0-alpha5 #or whatever
version you want. ln -s /usr/local/src/drush/drush /usr/bin/drush
composer install drush --version
I think you are trying to use Drush version 7.x.
Try using Drush 6.x, I don't think it requires composer. Drush releases. I have had drush 6.4 installed on shared hosting environment successfully without any problems.