aws

solution on connecting ssh 
https://unix.stackexchange.com/questions/115838/what-is-the-right-file-permission-for-a-pem-file-to-ssh-and-scp

fix the security problem in ec2
sudo yum update
before:
aws-cli/1.16.102 Python/2.7.16 Linux/4.14.138-89.102.amzn1.x86_64 botocore/1.12.92
sudo pip install --upgrade awscli
after:
aws-cli/1.16.309 Python/2.7.16 Linux/4.14.138-89.102.amzn1.x86_64 botocore/1.13.45

commands
aws iam list-users
aws iam create-user --user-name Lynard
aws iam list-policies
aws iam attach-user-policy --user-name Lynard --policy-arn arn:aws:iam::aws:policy/AdministratorAccess
aws iam list-attached-user-policies --user-name Lynard
aws iam add-user-to-group --user-name Lynard --group-name Marketing
aws iam get-group --group-name Marketing
aws iam remove-user-from-group --user-name Lynard --group-name Marketing
aws iam detach-user-policy --user-name Lynard --policy-arn arn:aws:iam::aws:policy/AdministratorAccess
aws iam delete-user --user-name Lynard

groups
aws iam create-group --group-name Accounting
aws iam attach-group-policy --policy-arn arn:aws:iam::aws:policy/AmazonDynamoDBFullAccess --group-name Accounting
aws iam list-attached-group-policies --group-name Accounting
aws iam detach-group-policy --group-name Accounting --policy-arn arn:aws:iam::aws:policy/AmazonDynamoDBFullAccess
aws iam delete-group --group-name Accounting
aws iam list-groups

How to get tail like functionality on windows with powershell

https://www.howtogeek.com/tips/how-to-get-tail-like-functionality-on-windows-with-powershell/

Markdown Preview for Sublime

https://packagecontrol.io/packages/MarkdownPreview

Angular

https://mdbootstrap.com/education/angular/

Typescript

npm install -g typescript

tsc --version

rest api

explain rest api in basic
https://www.youtube.com/watch?v=7YcW25PHnAA


available apis
https://www.programmableweb.com

how add terminal in your sublime

https://github.com/randy3k/Terminus

how to auto reload your changes in html to your browser

Working
BrowserSync
https://www.youtube.com/watch?v=3Pptm3EMaP4

not working
LiveServer
NPM node module
https://www.npmjs.com/package/live-server


28-10-2019
I just discover a new way to refresh the browser with 1 simple line of code in html.
add this:
<meta http-equiv="refresh" content="1">
https://code.tutsplus.com/tutorials/4-ways-to-auto-refresh-your-browser-when-designing-new-sites--net-13299
and voila!

making videos for non pro

background music
https://www.youtube.com/audiolibrary/music?nv=1

how to install ghost with docker in ubuntu

https://www.linode.com/docs/websites/cms/how-to-install-ghost-cms-with-docker-compose-on-ubuntu-18-04/

Shortcut for login to remote computer via SSH

You can add a config file (no file extension) to your .ssh folder with the following entry:
Host lynard.me
HostName 157.245.194.238
User root

reference:
https://superuser.com/questions/399360/shortcut-for-login-to-remote-computer-via-ssh

How To Set Up SSH Keys

reference:
https://www.digitalocean.com/community/tutorials/how-to-set-up-ssh-keys--2

django commands

create new django project
$ django-admin startproject mynewproject

run the server
$ python manage.py runserver

create app
$ python manage.py startapp myapptwo

How to Install NVM

https://www.liquidweb.com/kb/how-to-install-nvm-node-version-manager-for-node-js-on-ubuntu-12-04-lts/

Odoo 9 screen is blank

Issue: 

Solution:

I have found discussion on https://github.com/odoo/odoo/issues/19627 , seems that this issue was known. I tried the workaround to delete the assets information belong in /web/content

DELETE FROM ir_attachment WHERE url LIKE '/web/content/%';

but the first try wasn't successful, so i tried restart the service and refresh my browser.

Still not okay the second, third ... etc. I can't remember how many times i tried but at last it worked.

It's weird but I'm happy as for now. Eureka!

Failed to start Docker Application Container Engine

https://github.com/moby/moby/issues/16137



Solution:

It seems the problem is in the cyclane protection
need to ask the IT infra team to whitelist the docker container.shim and runc as part of docker installation.

Caddy sounds like candy

I already configure my domain skyguyver.com with Caddy but I need to review again as I can't remember how I did it.

The Caddyfile was placed in /etc/caddy

skyguyver.com {
    tls lynardsalingujay@gmail.com
    internal /.git
    git https://github.com/skyguyver/caddy.git {
        hook /github_hook d937c9d4-7c48-431e-8e60-bf916186f613
    }
    gzip
    redir 301 {
        if {scheme} is http
        /  https://{host}{uri}
    }
}

File "/usr/lib/python2.7/dist-packages/openerp/addons/base/ir/ir_attachment.py"

Conclusion:

Was able to fix this problem with a workaround: manually going into the database and removing the entries pointing to the missing files from filestoreDELETE FROM ir_attachment WHERE store_fname LIKE '%<the ending hash>%'


reference:
https://www.odoo.com/es_ES/forum/ayuda-1/question/solved-how-to-recover-deleted-attachment-files-from-filestore-folder-local-share-odoo-filestore-128453

Running Odoo and Postgres in separate container

Odoo:

version: '2'

services:
  app:
    image: skyguyver/odoo9_latest
    container_name: develop
    ports:
      - "3033:8069"
    volumes:
      - develop-data:/var/lib/odoo
      - ./addons:/mnt/extra-addons
    environment:
      - PYTHONUNBUFFERED=1
      - HOST=172.18.0.1
      - PORT=3032
      - USER=odoo
      - PASSWORD=odoo
    #command: openerp-server -d develop -u all

volumes:
  develop-data:

Postgres:

version: '2'

services:

  db:

    image: postgres:9.6

    ports:

      - "3032:5432"

    environment:

      - POSTGRES_USER=odoo

      - POSTGRES_PASSWORD=odoo

      - PGDATA=/var/lib/postgresql/data/pgdata

    volumes:

      - dbdata:/var/lib/postgresql/data/pgdata

volumes:

  dbdata:

files created in vagrant centos7 do not appear in windows

https://stackoverflow.com/questions/46318456/files-created-in-vagrant-centos-7-do-not-appear-in-windows

devco trial

Bubbles.py

from collections import OrderedDict

def nonrepeating(orig):

input = orig.lower()

dict=OrderedDict.fromkeys(input,0)

# traverse
for ch in input:
dict[ch]+=1

# nonrepeat
nonRepeatDict = [key for (key,value) in dict.iteritems() if value==1]
print nonRepeatDict

repeatStr = []
for tx in list(orig):
if tx not in nonRepeatDict:
repeatStr.append(tx)

makeitastring = ''.join(map(str, nonRepeatDict + repeatStr))
print makeitastring

if __name__ == "__main__":
orig = "Bubble"
nonrepeating(orig)

# you can write to stdout for debugging purposes, e.g.
# print("this is a debug message")

def solution(N):
    # write your code in Python 3.6
    ret = '+'
    flag = '+'
    for i in range(1, N):
        if flag == '+':
            ret += '-'
            flag = '-'
        else:
            ret += '+'
            flag = '+'
    return ret

Packt tutorial

Docker GUI
https://www.youtube.com/watch?v=8OuqJtIpUnw

Installing Jenkins with Docker in new approach

Install Jenkins

• Running Jenkins as a Docker container
• Interacting with the Docker host from Jenkins

$ docker volume create jenkins

To identify docker group id

$ getent group docker

docker:x:998:vagrant

Run the container and to save the jenkins configuration into jenkins volume

$ docker run -v jenkins:/var/jenkins_home -v /var/run/docker.sock:/var/run/docker.sock --group-add 998 --name jenkins dockerhp/jenkins

$ docker run -v jenkins:/var/jenkins_home -v /var/run/docker.sock:/var/run/docker.sock --group-add 998 -d --name jenkins dockerhp/jenkins 

To figure out the ip address of jenkins

$ docker inspect -f '{{.NetworkSettings.Networks.bridge.IPAddress}}' jenkins

172.17.0.2

To view the secret password

$ docker exec jenkins cat /var/jenkins_home/secrets/initialAdminPassword

Install plugin

Git plugin

Pipeline



Gitlab jenkins integration
https://webkul.com/blog/continuous-integration-jenkins-gitlab/

1and1 email address issue

I had this problem with my 1and1 email address. I can't receive any email from outside. I called the customer service in 1and1 and they help me setup into my digitalocean. The problem was that I had tied up my dns records already in digitalocean and all incoming email will intercept from digitalocean, something like that. I think, hehe.

But thanks its already solved. Eureka!


digitalocean

Hostname: @





TODO:
need to call digitalocean to add SPF

Java spring framework and dependency

I just had my refresher course for Java spring framework and it's really nice to be back again with Java. I find it that it's really improved from last used in Java way back in 2014. IDE is getting more better especially when using Eclipse.

I am using Spring tool suite now and it's really nice. One thing when working or coding into IDE I really like to use vim editor style. But now, I find this nice tool called vrapper http://vrapper.sourceforge.net/home/. You just install into the eclipse marketplace and that's it, boom, you have your vim style in your editor. sweet!

Another tool I just recently discovered is to have your clean code automatically formatted. I found this site http://www.eclipseonetips.com/2009/12/13/automatically-format-and-cleanup-code-every-time-you-save/ , it gives you guide how to set up in eclipse. woohh sweet again!



Spring devtools maven
dependency on automatic restarting the application

https://docs.spring.io/spring-boot/docs/current/reference/html/using-boot-devtools.html


copy and paste in pom.xml

I'm back in Java after 5 years

I enrolled a free course at https://courses.edx.org with the title "Fundamentals of Java EE Development". It's really great I hope it will help me refresh my memory in Java.

first I followed the guide to install the necessary tools for this course.
https://prod-edxapp.edx-cdn.org/assets/courseware/v1/f9292ed1b6d208828257761a04df54e9/asset-v1:RedHat+JB083x+3T2018+type@asset+block/JB083x_SG_Updated.pdf

docker: Error response from daemon: OCI runtime create failed: container_linux.go:348: starting container process caused "process_linux.go:297

docker: Error response from daemon: OCI runtime create failed: container_linux.go:348: starting container process caused "process_linux.go:297: copying bootstrap data to pipe caused \"write init-p: broken pipe\"": unknown.


workaround:
use vagrant bento version instead of official ubuntu !!!

How to setup Jenkins and Docker

So I want to learn CI/CD and I want to try this in my work. The setup would be docker, jenkins and odoo as the application.

These are the steps:

1. Pull official jenkins image.
docker pull jenkins

2. Create empty folder
/var/jenkins_home

2. Run the docker, will add the volume to map our local from the container.
docker run -u root --rm -p 8080:8080 -p 50000:50000 -v /var/jenkins_home:/var/jenkins_home -v /var/run/docker.sock:/var/run/docker.sock jenkinsci/blueocean







reference:
https://hub.docker.com/r/jenkinsci/blueocean/

Error starting userland proxy: listen tcp 0.0.0.0:5432: bind: address already in use

This issue happens when I installed Postgres in my vagrant (vm) and then I after a while I removed it. But the service is still running in the system causing the default 5432 port is not available to be used.





first I run this command

sudo apt-get --purge remove postgresql

but still, it didn't totally remove. so I have to run this command to list all running postgres

dpkg -l | grep postgres

then, I run again this command

sudo apt-get --purge remove postgresql postgresql-doc postgresql-common

Eureka!

Thanks for this reference
https://askubuntu.com/questions/32730/how-to-remove-postgres-from-my-installation

useful unix commands

to see all processes
ps -aef | more
ps -aef | sort | more
ps -aef | sort > out.txt

installing anaconda and jupyter in digitalocean

I have been frustrated lately trying to learn data science in my office (in my spare time) because of the SSL certificate issue. Every time I execute a command the error just popping up and I get a less patient and I say "Arrrrrr" and suddenly just pop in my mind, what if I will run anaconda and jupyter in my external server which my personal from digital ocean. and then the quest begins....


1. install the anaconda
https://www.digitalocean.com/community/tutorials/how-to-install-anaconda-on-ubuntu-18-04-quickstart

2. configure and run jupyter
https://www.digitalocean.com/community/tutorials/how-to-install-run-connect-to-jupyter-notebook-on-remote-server

ohhh, i'm invincible its only 2 steps.

 


Eureka!!!!!

Error: Permission denied to access property "nodeName"

issue




https://github.com/odoo/odoo/commit/5bb7ffa2

1. copy the file from container to host
docker cp 12f4057cbf0c:/usr/lib/python2.7/dist-packages/openerp/addons/web_editor/static/src/js/summernote.js .

2. after edit the file, copy back to container
docker cp summernote.js 12f4057cbf0c:/usr/lib/python2.7/dist-packages/openerp/addons/web_editor/static/src/js






Eureka!

python text to speech and this is awesome

pip install pyttsx3
pip install pypiwin32

the code:

import pyttsx3;
engine = pyttsx3.init();
engine.say("My wife is Sheryl and my two son's are Kiefer and Jairus");
engine.runAndWait() ;

that's it, eureka!

speech recognition

its 11pm and I found something interesting, this time I tried to implement speech recognition.

actually, its very easy

1. pip install SpeechRecognition
2. conda install -c anaconda pyaudio
3. the code

import speech_recognition as sr

r = sr.Recognizer()

with sr.Microphone() as source:
print('Speak anything:')
audio = r.listen(source)

try:
text = r.recognize_google(audio)
print('you said: {}'.format(text))
except:
print('sorry could not recognize your voice...')


4. run it! so simple. Eureka!


reference:
https://www.youtube.com/watch?v=K_WbsFrPUCk
https://realpython.com/python-speech-recognition/

check the install python modules

python

import pip
installed_packages = pip.get_installed_distributions()
installed_packages_list = sorted(["%s==%s" % (i.key, i.version)
     for i in installed_packages])
print(installed_packages_list)

SSL error

error:





solution:

conda config --set ssl_verify False

(better approach)
conda config --set ssl_verify C:\Users\lynard\AppData\Local\Continuum\anaconda3\Library\ssl\Fortinet_CA_SSL.pem

Install and manage anaconda in windows

conda commands

list of environment
conda info --envs

create environment
conda create --name py36 python=3.6 pip numpy
activate py36
conda install matplotlib

to show packages installed
conda list --explicit
conda list --explicit > py36_reqs.txt
conda create --name py36_v2 -- file py36_reqs.txt

to remove environment
conda env remove --name pyside

to clone environment
conda create --name myclone --clone myenv


reference:
https://docs.conda.io/projects/conda/en/4.6.0/_downloads/52a95608c49671267e40c689e0bc00ca/conda-cheatsheet.pdf
https://kapeli.com/cheat_sheets/Conda.docset/Contents/Resources/Documents/index (new)
https://www.youtube.com/watch?v=9Sfs7Fbvtdk