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Abstract class and interfaces

• Abstract class: Used to setup requirements for subclasses
• Abstract classes have more advantage than interfaces(primarily in instanceof check)
• For having correct code and implementation
• Link: https://app.diagrams.net/#Uhttps%3A%2F%2Fraw.githubusercontent.com%2FStephenGrider%2Fmicroservices-casts%2Fmaster%2Fdiagrams%2F05%2F03.drawio
• Diagram 28
• Lecture in 129 Udemy microservices course

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defaults write com.googlecode.iterm2 AlternateMouseScroll -bool true

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# Config for contrail_command
export SKIP_CONTRAIL_COMMAND_INSTALL=0
if [ $DEPLOYER = 'contrail_command_deployer' ]
then
   export DEPLOYER=contrail_command 
   export DEPLOYER_SERVER_HOST_STRING=root@10.204.216.120
   export DEPLOYER_SERVER_HOST_PWD=c0ntrail123
fi
# End of contrail_command config

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agilio-vrouter5:
  virtioforwarder-coremask: "1,2"
  registry: "netronomesystems"
  registry-insecure: false
  # Remove the above if error is seen
  image-tag: "latest"

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{
"Profiles": [
{
  "Use Non-ASCII Font" : false,
  "Tags" : [

  ],
  "Ansi 12 Color" : {
    "Green Component" : 0.3333333432674408,
    "Red Component" : 0.3333333432674408,

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vim .zshrc
gedit .zshrc
cd ~/.profile
printenv $PATH
npx express-generator --help
npx express-generator -e
cd views
pycharm index.=ejs
npm install express
npm install -g nodemon

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history | grep brew
brew cask install java
brew cask install anaconda
brew cask install homebrew/cask-versions/adoptopenjdk8
brew install jenkins
which brew
brew install kubectl
brew cask install minikube
brew install kubernetes-helm
brew install   telnet

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> /Users/nuthanc/personal_projects/django_ajax_guide/src/my_app/views.py(25)postFriend()
-> ser_instance = serializers.serialize('json', [ instance, ])
(Pdb) s
--Call--
> /Users/nuthanc/personal_projects/django_ajax_guide/lib/python3.7/site-packages/django/core/serializers/__init__.py(122)serialize()
-> def serialize(format, queryset, **options):
(Pdb) l
117         if format not in _serializers:
118             raise SerializerDoesNotExist(format)
119         return _serializers[format].Deserializer

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# Your system has configured 'manage_etc_hosts' as True.
# As a result, if you wish for changes to this file to persist
# then you will need to either
# a.) make changes to the master file in /etc/cloud/templates/hosts.debian.tmpl
# b.) change or remove the value of 'manage_etc_hosts' in
#     /etc/cloud/cloud.cfg or cloud-config from user-data
#
192.168.30.20 noden20.maas noden20
192.168.30.19 noden19.maas noden19
192.168.40.19 noden19.maas noden19

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Places of failure

1. Agilio docker pull fail

• Probable Causes:
  • Invalid credentials(Ruled out)
  • Registry not reachable
  • Image not present
  • Access not given

2. Agent not ready: XMPP problem

• Probable Causes:
• easy-rsa along with some double dash thing(Need to confirm with Andrey)