connecting to AWS server where docker is deployed through template - docker

I am following the article that I found here...
https://docs.docker.com/datacenter/install/aws/
I am able to deploy the template, but I do not see the UCP and DTR URLs in the output tab.
Actually there are only 2 parameters in the output tab. DefaultDNSTarget and Managers. How do I connect to docker swarm?

I need to connect to Public IP of Docker Manager instance. For e.g. if the IP is 52.90.20.41 then the ssh command will look something like this...
ssh -i yourkey.pem docker#52.90.20.41

In the "Managers" Parameter of the output tab the value should be a URL that will redirect you to a filtered view of the EC2 Instances that are the managers. There you will see the PublicIpAddresses of the managers.

Related

DDEV - create SFTP user

I have created two containers (ddev-website-web and ddev-api-web) via DDEV.
Now I want to access the website container from the api container via SFTP.
How can I create a SFTP user in DDEV for the website container? Is this possible at all?
The containers are already connected via a router.
I think
Install sshd using this technique from ddev-contrib will work for you, at least will get you started with having an ssh server
Add vsftpd by adding to webimage_extra_packages inthe config.ssh.yaml: webimage_extra_packages: [vsftpd, openssh-server] to your .ddev/config.yaml
From there, you may have some extra config to do based on https://linuxopsys.com/topics/install-vsftpd-ftp-server-on-debian

Unable to access localhost Jenkins from the another computer in the same network

Unable to access localhost Jenkins from another computer in the same network. These are the steps I did
1) I pinged the ip address of the computer from another computer and it is successful
2) I change the Jenkins URL in the config to - http://[IP of the machine:8080]
3) Turned off the firewall.
However I am not able to access this url from the same computer or another computer - http://[IP of the machine:8080]
Any time would be appreciated. Followed all the steps, not sure if i need to use a service like xamp or mamp
i also did ifconfig and this is what i got. My jenkins port is running on :8080 and i dont know what url to add to my jenkins so i can access it from other network within the same computer
Also what other steps i need to do, do i need to open the port from somwhere?
For Instance, your IP of Jenkins master is 192.169.x.x.
Open the Port 8080 via firewall and then change the URL of jenkins from "Manage Jenkins >>Config Sys >> Jenkins Location>" to "http://192.169.x.x:8080"
Now you can access it from other machine on same network domain.Just have to hit the url http://192.169.x.x:8080
You can now create different users with different privileges for the same.
You can find it under Manage Jenkins >> Manage Users >> Create Users.

Login Issue with Weblogic in Docker

I created a Weblogic generic container for version 12.1.3 based on the official Docker images from Oracle at https://github.com/oracle/docker-images/tree/master/OracleWebLogic/dockerfiles
Command: buildDockerImage.sh -g -s -v 12.1.3
This creates the image oracle/weblogic:12.1.3-generic
Using a modified version of sample dockerfile for 1213-domain, I built the Weblogic container.
Note: changed the base image to be generic, instead of developer
docker build -t 1213-domain --build-arg ADMIN_PASSWORD="admin123" -f myDockerfile .
Pushed the built image to Amazon ECR and ran the container using the AWS ECS. Configured the port mappings as 0:7001, set memory soft limit as 1024, nothing else changed in default ECS settings. I have an application load balancer in the front, which receives traffic at 443 port and forwards to the containers. In the browser I get a login page for Weblogic, when I enter username as weblogic and password as admin123, I get the error:
Authentication Denied
Interestingly when I go to the container and connect to the weblogic using WLST, it works fine.
[ec2-user#ip-10-99-103-141 ~]$ docker exec -it 458 bash
[oracle#4580238db23f mydomain]$ /u01/oracle/oracle_common/common/bin/wlst.sh
Initializing WebLogic Scripting Tool (WLST) ...
Jython scans all the jar files it can find at first startup. Depending on the system, this process may take a few minutes to complete, and WLST may not return a prompt right away.
Welcome to WebLogic Server Administration Scripting Shell
Type help() for help on available commands
wls:/offline> connect("weblogic","admin123","t3://localhost:7001")
Connecting to t3://localhost:7001 with userid weblogic ...
Successfully connected to Admin Server "AdminServer" that belongs to domain "mydomain".
Warning: An insecure protocol was used to connect to the
server. To ensure on-the-wire security, the SSL port or
Admin port should be used instead.
wls:/mydomain/serverConfig>
Any hints on what can be going wrong?
Very interesting indeed. :) .. You are sure there is no special characters or so when you entering the username and password. Try typing the same if you are coping.
Also as backup, since you are able to login to WLST you can try two option.
Resetting the current password of weblogic or try adding new username and password.
below link will help
http://middlewarebuzz.blogspot.com/2013/06/weblogic-password-reset.html
or
http://middlewaremagic.com/weblogic/?p=4962

Jenkins not accessible with http://<hostname>:8080 in Windows server 2012

I have installed Jenkins in Windows server 2012 64-bit machine and want to make it available in internal network.
I have added --httpListenAddress to 0.0.0.0 and restarted Jenkins and tried to access it with http://hostname:8080 but no page shows up(though It showing Jenkins icon in URL bar). However http://localhost:8080 works fine.
Further I checked the firewall inbound rule for the Jenkins but seems it has no issues.
I tried to catch the listening ports with "netstat -aon | find /i "8080" and found <host ip address>:8080 FIN_WAIT_2 which sign towards that the request is stuck(May be I am wrong).
I am clueless what exactly is blocking to use hostname with jenkins. Please share your solution if you already fixed this issue.
You might try adding a Windows Firewall rule. Go to Windows Firewall, Advanced Configuration, Inbound Rules rule and create an Allow rule for the specific version of java.exe you have installed.
This worked for us with the drawback that every time you upgrade Java, you must also modify the firewall rule. This is because Java creates a new subfolder for every version. We've tried using %JAVA_HOME% in firewall rules but it doesn't seem to work. We were on Windows Server 2012R2 at the time.
Similar answer here: https://stackoverflow.com/a/17479566/7752
On the server open a new command prompt and type
ipconfig
You should get a list of ips. Open a browser and type each up followed by 8080 for e.g.
http://202.123.2.1:8080
If Jenkins opens up, from another computer ping the ip and see if you can get a ping reply
ping 202.123.2.1
If you get a ping reply, you can access jenkins from any pc on the network by typing in the ip and port number.
Now to get to the hostname,you need to edit your host file
c:\Windows\System32\Drivers\etc\hosts
Type in the ip followed by the hostname
202.123.2.1 jenkins
If you can't get through, you need to open port 8080. See https://www.vultr.com/docs/how-to-open-a-port-in-windows-firewall-on-windows-server-2012
You cannot access from outside the machine because Jenkins Service does not have credentials to use that machine, only from localhost is accessible.
This is how to enter the credentials in Jenkins service.
In the Windows search bar, type services then enter.
Then scroll down to Jenkins and double-click on it.
In Jenkins Properties, select the tab "Log On".
Select Check box "This account"
Update your username and password.
Voila! Now Jenkins web can connect to the Jenkins machine via Jenkins service.

Possible to Change Jenkins URL? : http://localhost:8080

Possible to Change Jenkins URL? : http://localhost:8080
Currently I have jenkins setup on a virtual machine.
Is it possible to setup Jenkins on a URL which is more is accessible for other users?
For example I dont want other users to access test results by connecting to the Virtual machine instead I want them to access a URL from their own device in turn enabling them to login and see test results via jenkins.
thanks for you help
Let's say IP of your virtual machine is 192.168.x.x.
Open the Port 8080 via firewall and then change the URL of jenkins from
"Manage Jenkins >>Config Sys >> Jenkins Location>" to "http://192.168.x.x:8080"
Now you can access it from other machine on same network domain.Just have to hit the url http://192.168.x.x:8080
You can now create different users with different privileges for the same.
You can find it under Manage Jenkins >> Manage Users >> Create Users.
It is related to networking. The machines should be on the same network, so they can talk to each other (unless you have public IP).
The ONLY rule to give access is, that machines can talk to each other (of course, in their language, 0's & 1's).
I suggest following things to do to share the URL:
Ask the users to connect to the same network that your machine is in.
Verify whether they are able to PING your machine IP (get it from ipconfig command for windows - router assigns IP for your machine, that starts with 192.168 or 10.10). command example: ping 10.10.1.10
If any issues in Ping, it might be Windows Firewall or Anti-virus which might be blocking, so allow the IPs in your firewall so they can access your machine.
Then ask them to access Jenkins using the following URL http://[IP of your machine:8080]
We want the Jenkins web interface to be accessible from anywhere (not
just on the local machine), so we’re going to open up the config file:
sudo nano /usr/local/opt/jenkins-lts/homebrew.mxcl.jenkins-lts.plist
Find this line:
<string>--httpListenAddress=127.0.0.1</string>
And change it to:
<string>--httpListenAddress=0.0.0.0</string>
RF : Installing Jenkins on macOS

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