These are the steps for installing docker on Ubuntu machine.
1 sudo apt-get update
2 sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
3 sudo apt-add-repository 'deb https://apt.dockerproject.org/repo ubuntu-xenial main'
4 sudo apt-get update
...
Wednesday, 31 May 2017
May 31, 2017
AWS EC2 - Install Docker on Ubuntu
Tuesday, 30 May 2017
May 30, 2017
There is insufficient memory for the Java Runtime Environment to continue AWS Ec2
docker run --rm -p .........
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=512m; support was removed in 8.0
#
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (mmap) failed to map 715849728 bytes for committing reserved memory.
# An error report file with more information is saved as:
# /usr/zeppelin/hs_err_pid1.log
Java...
Monday, 29 May 2017
May 29, 2017
Install Docker in AWS EC2
This article will help you to install docker in centOS version or RHEL version of linux.
Install the Docker from official Docker repository
$ sudo yum check-update
$ curl curl -fsSL https://get.docker.com/ | sh
Once docker installed, start the Docker daemon
$ sudo systemctl start docker
To check the docker status
$ sudo systemctl status docker
start the docker at the server reboot
$...
Sunday, 28 May 2017
May 28, 2017
AWS DynamoDB vs AWS S3
When to use aws dynamodb
It depends on your use case for the application and type of data. If you want to use it for the real apps, use dynamodb.
DynamoDb is good for storing structured data. It has some limits in the storage size but it has very high access speed.
S3 storage is good for storing files.It cloud be read over http with REST Api. If you want to update images or some files,...
Saturday, 27 May 2017
May 27, 2017
Http to Https redirection for ec2 instance
If you want traffic coming to web server redirect to https without change the backed listener to port 443,
ELB supports a HTTP header called X-FORWARDED-PROTO. you can force the http to https redirection by writing simple rule.
If your using IIS,
<rewrite xdt:Transform="Insert">
<rules>
<rule name="HTTPS rewrite behind ELB rule" stopProcessing="true">
<match url="^(.*)$"...
Friday, 26 May 2017
May 26, 2017
Strategy of Amazon Route 53
With Amazon Route 53 , you can manage domain names, register the domain names and pay yearly charge for each domain name registered via Route 53.
It provides DNS queries for mapping subdomain with public ip. For example, you registered a domain with Route 53, you want to create subdomain dynamically, aws provides api for creating subdomains, you don't pay any upfront fees, like all other...
Tuesday, 16 May 2017
May 16, 2017
aws route53 Tried to create resource record set type=\'CNAME\'] but it already exists'
{ [InvalidChangeBatch: Tried to create resource record set [name='demotest3d.test.com.', type='CNAME'] but it already exists]
message: 'Tried to create resource record set [name=\'demotest3d.test.com.\', type=\'CNAME\'] but it already exists',
code: 'InvalidChangeBatch',
time: Wed May 17 2017 13:05:26 GMT+0800 (Malay Peninsula Standard Time),
requestId: '7684460-3abe-11e7-b5fe-5bc5fdddcbjcxdb52370',
...
Wednesday, 10 May 2017
May 10, 2017
Installing Nodejs in Redhat in aws
1. Run this command to setup required components before installing nodejs
sudo rpm -Uvh https://rpm.nodesource.com/pub_4.x/el/7/x86_64/nodesource-release-el7-1.noarch.rpm
2. Then install Nodejs
sudo yum install nodejs
3. Check nodejs installed version
node --version
sudo rpm -Uvh https://rpm.nodesource.com/pub_4.x/el/7/x86_64/nodesource-release-el7-1.noarch.rpm
Retrieving https://rpm.nodesource.com/pub_4.x/el/7/x86_64/nodesource-release-el7-1.noarch.rpm
warning:...
Wednesday, 3 May 2017
May 03, 2017
Unable to run yum list
Unable to run yum info, yum list , i got the follwoing issues
Could not contact any CDS load balancers: rhui2-cds01.ap-southeast-1...
May 03, 2017
RHEL on AWS ec2 missing the following packages
sudo yum install httpd24 php56 mysql55-server php56-mysqlndLoaded plugins: amazon-id, rhui-lb, search-disabled-reposNo package httpd24 available.No package php56 available.No package mysql55-server available.No package php56-mysqlnd available.Error: Nothing to ...
