jwyx3 / capstone

used car service

capstone1

install

• mongodb
• redis-cli: apt-get install redis-tools

configuration

• add PATH=<workspace>/used_car/used_car/tools:$PATH to .bashrc

vim tips

• remove string after last comma: %s!^\([^,]*,\)\{2\}\zs.*!!g
• remove last comma: %s/,$//g
• remove string after first comma: %s/[^,]*$//

run crawler

• crawl make and model: scrapy crawl makemodel -t csv -o data/makemodel.csv
• crawl make and model with start/pause: scrapy crawl makemodel -t csv -o data/makemodel1.csv -s JOBDIR=crawls/makemodel1
• scale crawler: docker-compose scale crawler_sfbay=2

issue

• install vega-embed failed: solution

deployment in production

• docker stack deploy --compose-file=docker-compose.yml capstone
• docker-compose build --no-cache feeder
• docker-compose -f docker-compose-prod.yml up -d --build --force-recreate frontend
• docker rm $(docker ps -a --format {{.ID}})
• docker rmi $(docker images -f "dangling=true" -q)

steps to setup

1. git clone
2. run bash setup.sh
3. run bash start.sh
4. prepare secret files

> mkdir /opt/secrets/

create these files:

> ls -l /opt/secrets/
total 28
-rw-r--r-- 1 root root 41 Oct 27 16:39 app-worker-token # token of one user of Django, you can modify this file later
-rw-r--r-- 1 root root 13 Oct 27 16:31 mysql-password # e.g. pass
-rw-r--r-- 1 root root 18 Oct 27 16:31 mysql-root  # e.g. root-pass
-rw-r--r-- 1 root root  7 Oct 27 16:31 mysql-user  # e.g. user1
-rw-r--r-- 1 root root 27 Oct 27 16:32 proxy       # e.g. http://1.1.1.1:xxx
-rw-r--r-- 1 root root 62 Oct 27 16:30 secret-key  # e.g. xojsjsflankndgoaee
-rw-r--r-- 1 root root 18 Oct 28 14:52 static-root # /www/data/static 

1. create super user and worker in django

login to backend docker and create super user:

> python manage.py createsuperuser

visite http://localhost:8000/admin/

# we use gunicorn to serve the static files of django
# so the admin ui doesn't work
#
# workaround:
# restart backend using DEBUG and development server
# use the admin GUI to create token

login use super user

create one user: worker

assign "ad -create" permission to worker

create tokens for both super user and worker

1. load make and model data

go to backend/tools, modify token of load_make.py

> python load_make.py

1. visit http://localhost:80/ (must keep login status in django, authentication model is bad now!)

some thought

• not familar with django, so hard to quickly debug. but really feature rich!!
• the config of nginx is so complex for me ..
• need more UI knowledge