But I do it to read Manga and laze around almost every where. That's why I try to write everything about servers and their stupid troubles.
Knowledge is Power!
Docker provides container isolation, one of the aspects that helps to achieve this is by using Networking namespace. The objective is to understand how containers interact with 1. Other containers 2. The host and 3. The host’s network i.e outside the world via the host. Pre-requisites Docker installed
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Pay for what is used. We are billed for pre-selected configuration. 1. On-demand The time when the instance was up and running, only that period is charged. Here is a little tricky thing. When we say Time it is categorized in two aspects. 1. Per hour: For example, an instance
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WARNING! Your password will be stored unencrypted in /home/ashwini-gaddagi/.docker/config.json. Configure a credential helper to remove this warning. See https://docs.docker.com/engine/reference/commandline/login/#credentials-store Found of this error ? :p Here is what I did to get my docker client working with docker-credentials-pass ! 1.
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Ansible * Allows us to change same thing on multiple servers quickly and easily. Install: * pip install --user ansible How * "hosts" file where all server's ip written. * "filename.yml" code written to make changes in the above ip. * Inserting a line after a particular line.
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Be secure by deafult! 🔒 Policy structure 🛡️ Principal: Attaching policy to?... Entity (users/resources) 🛡️ Action: Type of access allowed (Allow/Deny). 🛡️ Resources: Action will act on?...AWS Resources. 🛡️Condition: Under what condition/circumstances execute the defined actions on arn. Pro tip can make it most powerful as any of the Marvel
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Continuation of previous post:Docker Networking Run: docker network ls $ docker network ls NETWORK ID NAME DRIVER SCOPE 0cbe40bf4969 bridge bridge local 7361f58bf7ab host host local 6051f389c7f5 none null local Have a look at what this default network bridge is providing. Run: docker inspect <networkid> Try to get
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Why Gradle wrapper?: Developer's working on Gradle project uses Gradle Wrapper because it takes care of managing Gradle version on which the project is build upon. So when we ship it to others, they need not to install any setup environments for the project to run. There are
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Workflow: Through AWS CLI push docker image to ECR. Disclaimer: Encountered to various silly errors but it only helped to think better. Moreover dont hop around doubts/topics and fall into loop, stick to one, solve it and if it is consuming unneccessary time write down the problem statement keep
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Confused what EXPOSE:8080 is ? It means that containers are listening at the port 8080 at runtime and this port is not accessible to us until we map it i.e. we need to tell it explicitly through which port of our host machine we will interact to it'
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What is an EC2 EC2 is nothing but a virtual server. In layman terms its a machine provided by AWS, the difference is we don't get to hold it like our PC but it does have its own physical existence which is taken care by AWS, all we
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Still a rookie ! Create an IAM users: a. Master: [ give Admin permission, to have a track of work done ] b. Readonly:[ give only read permissions, to check all the activities in the account ] Use "Readonly" users to check the activities to avoid unwanted deletions/action which will cost
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1. Download virtualbox 2. Download vagrant 3. Vagrantfile: Change config.vm.box = "ubuntu/trusty64", to set ubuntu server of your choice. 4. Commands:vagrant up To boot vagrant environment and now we have virtual machine running Ubuntuvagrant ssh to ssh into machine 5. To change default key:ssh-keygen