Sometimes, you just want to know if you can reach your thing (service really)
from Cloud Foundry. Is there a proxy in the way, is there an app security
group, the dreaded firewall of doom or is it your code? Will It Connect
takes a url or hostname and a port or an ip and a port and tries to make a
connection from inside Cloud Foundry. If your destination allows us to open
a socket or responds to a GET request on the URL, we report success, if not,
we fail. Deploy it to the same space you intend to run your app and you can
test the exact environment! The original usecase was designed with non http
connections in mind, so we don't make any assumptions about protocol unless
you provide a url (i.e. something that starts with http:// or https://.
We simply open a socket connection to the host and port. If you provide a
URL we make a GET request, including SSL handshake if required.
➜ curl willitconnect.cfapps.io/v2/willitconnect -d '{"target":"http://amazon.com"}' -H "Content-Type: application/json" | jq '.'
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 148 100 118 100 30 108 27 0:00:01 0:00:01 --:--:-- 108
{
"lastChecked": 0,
"entry": "http://amazon.com",
"canConnect": true,
"httpStatus": 200,
"validHostname": false,
"validUrl": true
}
➜ curl willitconnect.cfapps.io/v2/willitconnect -d '{"target":"google.com:443"}' -H "Content-Type: application/json" | jq '.'
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 152 100 125 100 27 1121 242 --:--:-- --:--:-- --:--:-- 1126
{
"lastChecked": 1459476345175,
"entry": "google.com:443",
"canConnect": true,
"httpStatus": 0,
"validHostname": true,
"validUrl": false
}
➜ curl willitconnect.cfapps.io/v2/willitconnect -d '{"target":"https://twitter.com"}' -H "Content-Type: application/json" | jq '.'
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 152 100 120 100 32 173 46 --:--:-- --:--:-- --:--:-- 173
{
"lastChecked": 0,
"entry": "https://twitter.com",
"canConnect": true,
"httpStatus": 200,
"validHostname": false,
"validUrl": true
}
➜ curl willitconnect.cfapps.io/v2/willitconnect -d '{"target":"http://does-not-exist.com"}' -H "Content-Type: application/json" | jq '.'
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 163 0 126 0 38 0 0 --:--:-- 0:02:07 --:--:-- 17
{
"lastChecked": 0,
"entry": "http://does-not-exist.com",
"canConnect": false,
"httpStatus": 0,
"validHostname": false,
"validUrl": true
}
➜ curl willitconnect.cfapps.io/v2/willitconnect -d '{"target":"does-not-exist.com"}' -H "Content-Type: application/json" | jq '.'
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 150 100 119 100 31 193 50 --:--:-- --:--:-- --:--:-- 193
{
"lastChecked": 0,
"entry": "does-not-exist.com",
"canConnect": false,
"httpStatus": 0,
"validHostname": false,
"validUrl": false
}
➜ curl willitconnect.cfapps.io/v2/willitconnect -d '{"target":"google.com:20"}' -H "Content-Type: application/json" | jq '.'
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 151 100 125 100 26 37 7 0:00:03 0:00:03 --:--:-- 37
{
"lastChecked": 1459477570094,
"entry": "google.com:20",
"canConnect": false,
"httpStatus": 0,
"validHostname": true,
"validUrl": false
}
PS C:\>Invoke-RestMethod willitconnect.cfapps.io/v2/willitconnect -Body '{"target":"http://amazon.com"}' -Headers @{"Content-Type"="application/json"} -Method POST
lastChecked : 1493667208210
entry : http://amazon.com
canConnect : True
httpStatus : 301
httpProxy :
responseTime : 79
validUrl : True
validHostname : False
PS C:\>Invoke-RestMethod willitconnect.cfapps.io/v2/willitconnect -Body '{"target":"google.com:443"}' -Headers @{"Content-Type"="application/json"} -Method POST
lastChecked : 1493667208210
entry : google.com:443
canConnect : True
httpStatus : 0
httpProxy :
responseTime : 3018
validUrl : False
validHostname : True
PS C:\>Invoke-RestMethod willitconnect.cfapps.io/v2/willitconnect -Body '{"target":"https://twitter.com"}' -Headers @{"Content-Type"="application/json"} -Method POST
lastChecked : 1493667672286
entry : https://twitter.com
canConnect : True
httpStatus : 200
httpProxy :
responseTime : 742
validUrl : True
validHostname : False
PS C:\>Invoke-RestMethod willitconnect.cfapps.io/v2/willitconnect -Body '{"target":"http://does-not-exist.com"}' -Headers @{"Content-Type"="application/json"} -Method POST
lastChecked : 1493667888431
entry : http://does-not-exist.com
canConnect : False
httpStatus : 0
httpProxy :
responseTime : 127212
validUrl : True
validHostname : False
PS C:\>Invoke-RestMethod willitconnect.cfapps.io/v2/willitconnect -Body '{"target":"does-not-exist.com"}' -Headers @{"Content-Type"="application/json"} -Method POST
lastChecked : 0
entry : does-not-exist.com
canConnect : False
httpStatus : 0
httpProxy :
responseTime : 1
validUrl : False
validHostname : False
PS C:\>Invoke-RestMethod willitconnect.cfapps.io/v2/willitconnect -Body '{"target":"google.com:20"}' -Header
s @{"Content-Type"="application/json"} -Method POST
lastChecked : 1493668051469
entry : google.com:20
canConnect : False
httpStatus : 0
httpProxy :
responseTime : 3018
validUrl : False
validHostname : True
3 steps get you up and running!
Download the jar file from the latest release and push it
➜ cf push -p willitconnect-0.0.1.jar #Use the right version # from the release
➜ git clone https://github.com/krujos/willitconnect
➜ npm install
➜ ./gradlew assemble
➜ cf push
The project uses the standard spring boot directory structure, with web content located in src/main/resources/static.
You can run it locally by using
➜ ./gradlew bootRun
Willitconnect can also be connected to hubot -- more information at hubot-will-it-connect