ืืื ืืขื ืึทืจืืืงื ืืืจ ื ืืฆื , , ะธ ืืืจ ืืืขืื ืึธืจืืึทื ืืืืจื ืึท ืกืืืืึทืก ืืืืกืืืื ืคืื ืื ืืืขื ืึทืคึผืืึทืงืืืฉืึทื. ืืื ืึท ืืขืื ืืง ืืืึธืก ืึทืืึทืื ืืืจ ืฆื ืืืืื ืืขืจืืืึทื ืืืงื ืึท ืึทืคึผืืึทืงืืืฉืึทื ืึธื ืจืืืืฉืขืงืืื ื ืึท ืืืื ืืงืฉื. ืขืก ืืื ืืืื ืขืจ ืคืื ืื ื ืื ืืึทืื ืืืื ืืืคึผืืืืืึทื ื ืกืืจืึทืืขืืืขืก ืืื ืืื ืืขืกืืขืจ ืคึผืึทืกืืง ืคึฟืึทืจ ืึทืคึผืืึทืงืืืฉืึทื ื ืืื ืืืื ืืืึทืฉืคึผืื, ืึธืืขืจ ืื ืคืืืืงืืื ืฆื ืืึธืื ืึท ืจืืข, ืืจืืื-ืฆื-ืืืืคื ืืืึทืฉืคึผืื ื ืืจืืื.
ืืื ืก ืืึธืื ืืืจ ืืึธืื ืึท ืืืขื ืึทืคึผืืึทืงืืืฉืึทื ืืื ืืืึธืก ืคืืืข ืงืืืืึทื ืฅ ืืขื ืขื ืึทืงืืืืืื ืืจืืขืื, ืืื ืขืก ืืื ืืขืืึทืืจืข ืงืืื ืืืขื ืคึฟืึทืจ ืขืก ืฆื ืืืื ืึทืจืึธืคึผ ืคึฟืึทืจ ืึท ืคึผืึธืจ ืคืื ืกืขืงืื ืืขืก. ืืื ืืืจ ืืึทืงืข ืืึทืจืคึฟื ืฆื ืจืึธืืื ืึท ืืืืืืึธืืขืง ืืขืจืืืึทื ืืืงื, ืึท ืืฉืืง ืคืึทืจืจืืืื ืึธืืขืจ ืึท ื ืืึทืข ืงืื ืฉืืจืื. ืืื ืึท ื ืึธืจืืึทื ืกืืืืึทืฆืืข, ืืืจ ืืึทืจืคึฟื ืฆื ืืึทืืื ืื ืึทืคึผืืึทืงืืืฉืึทื, ืคืึทืจืืืึทืื ืขืก ืืื ืึธื ืืืืื ืขืก ืืืืืขืจ. ืืื ืืขื ืคืึทื ืคืื ืืึธืงืขืจ, ืืืจ ืงืขื ืขื ืขืจืฉืืขืจ ืคืึทืจืืืึทืื ืขืก, ืืื ืจืืกืืึทืจื ืขืก, ืึธืืขืจ ืขืก ืืืขื ื ืึธื ืืืื ืึท ืคึผืขืจืืึธื ืืื ืืืึธืก ืจืืงืืืขืก ืฆื ืื ืึทืคึผืืึทืงืืืฉืึทื ืืืขื ื ืืฉื ืืืื ืคึผืจืึทืกืขืกื, ืืืืึทื ืืืืฉืึทืืืึทืื ืื ืึทืคึผืืึทืงืืืฉืึทื ื ืขืื ืขืืืขืืข ืืึธื ืฆื ืืืืืขืก ืืึธืื. ืืืึธืก ืืืื ืขืก ืกืืึทืจืฅ, ืึธืืขืจ ืืืจื ืก ืืืืก ืฆื ืืืื ืื ืึทืคึผืขืจืึทืืึทื? ืืึธืก ืืื ืืขืจ ืคึผืจืึธืืืขื, ืืึธืื ืก ืกืึธืืืืข ืขืก ืืื ืืื ืืืึทื ืืืืืขื ืืื ืืื ืขืืขืืึทื ื ืืื ืืขืืืขื.
ืึธืคึผืืืืงืขื ืื ื: ืจืืึฟ ืคืื ืื ืึทืจืืืงื ืืื ืืขืจืืื ืื ืืื ืึทื ืืงืกืคึผืขืจืืขื ืึทื ืคึฟืึธืจืืึทื - ืืื ืื ืคืึธืจืขื ืคืื ืึท ืจืขืงืึธืจืืื ื ืคืื ืึท ืงืึทื ืกืึธืื ืกืขืกืืข. ืึทืืขืืืืึท ืืึธืก ืืืขื ื ืืฉื ืืืื ืฆื ืฉืืืขืจ ืฆื ืคึฟืึทืจืฉืืืื ืืื ืื ืงืึธื ืืืขื ืืึธืงืืืขื ื ืืื ืืขื ืื. ืคึฟืึทืจ ืึทืืืึธืกืคืขืจ, ืืืึทืืืฉืึทื ืึทื ืืึธืก ืืขื ืขื ื ืืฉื ืืืืื ืงืึธื ืกื ืืคึผืึทืฅ, ืึธืืขืจ ืคึผืึทืคึผืืจ ืคืื ืึท "ืืืึทืื" ืืขืืขืืืคึผืข.
ืืฉืืงืึทืืืข ืืขืงื ืืงืก ืืืึธืก ืืขื ืขื ืฉืืืขืจ ืฆื Google ื ืึธืจ ืืืจื ืืืืขื ืขื ืืขื ืงืึธื ืืขื ืขื ืืืกืงืจืืืื ืืื ืื ืึธื ืืืื ืคืื ืืขืืขืจ ืึธืคึผืืืืืื ื. ืืืื ืขืคึผืขืก ืึทื ืืขืจืฉ ืืื ืืืงืืึธืจ, ืืืื ืขืก ืืื ืืฉืขืง ืขืก ืืืืก. (ืฆืื ืืืืง, ืขืก ืึทืจืืขื ืืืืืขืจ, ืจืขืื ืฆื ืืขืจ ืื ืืืึธืงืงืื ื ืคืื ืื ืืขืืขืืจืึทื). ืืืื ืืืจ ืงืขื ืขื ื ืืฉื Google ืขืคึผืขืก, ืคืจืขืื ืืื ืื ืืึทืืขืจืงืื ืืขื. ืืื ืืืขื ืืืื ืฆืืคืจืืื ืฆื ืืืืื ืฆื ืื ืงืึธืจืึทืกืคึผืึทื ืืื ื ืึธืคึผืืืืืื ื "ืืื ืืขืจืขืกืึทื ื ืืขืงื ืืงืก".
ืืื ืก ืืึทืงืืืขื ืกืืึทืจืืขื.
$ mkdir blue-green-deployment && cd $_ืืื ืกื
ืืึธืืืจ ืืึทืื ืึทื ืืงืกืคึผืขืจืืขื ืึทื ืืื ืกื ืืื ืฉืืขืื ืขืก ืืื ืึท ืงืึทื ืืืื ืขืจ.
ืืฉืืงืึทืืืข ืืขืงื ืืงืก
cat << EOF > file-name( + ) ืืื ืึท ืืืขื ืฆื ืฉืึทืคึฟื ืึท ืืึทืืื-ืฉืืจื ืืขืงืข ืืื ืืืื ืืึทืคึฟืขื. ืึทืืฅ ืืึทืฉ ืืืืขื ื ืคืื/dev/stdinื ืึธื ืืขื ืฉืืจื ืืื ืืืืืขืจ ืื ืฉืืจืEOFืืืขื ืืืื ืจืขืงืึธืจืืขื ืืืfile-name.wget -qO- URL() - ืจืขืืืืืึทื ืึท ืืึธืงืืืขื ื ืืืงืืืขื ืืืจื ืืืืคึผ ืฆื/dev/stdout(ืึทื ืึทืืึธืcurl URL).
ืคึผืจืื ืืึทืื
ืืื ืกืคึผืึทืกืืคืืงืื ืืจืขืื ืื ืกื ืืคึผืึทื ืฆื ืืขืื ืืืืืืืืื ื ืคึฟืึทืจ ืคึผืืืืึธื. ืืื ืื ืกืืฃ ืขืก ืืืขื ืืืื ืื ืื ืืขืจ ืฉืืืง ืืื ืืึธืก. ืืึทืืจืึทืืื ืึทื ืืื ืื ืขืจืืขืจ ืื ืคึผืึทืคึผืืจ ืืื ืฉื ืืึทืื ืฆื ืืืื ืืขืฉืืงื ืฆื ืื ืืืืืืืืื ื ืึธืคึผืืืืืื ื (ืืื ืื ืงืึธื ืืื ืืึทื ื-ืงืึธืืืจื ืืื ืืืืืืืืืืขืจืก), ืืื ืืึทื ืื ืืจืขืงืืขื ืืขื ืขื ืงืืืืื ืฆืืจืืง.
$ cat << EOF > uptimer.pyfrom http.server import BaseHTTPRequestHandler, HTTPServer
from time import monotonic
app_version = 1
app_name = f'Uptimer v{app_version}.0'
loading_seconds = 15 - app_version * 5
class Handler(BaseHTTPRequestHandler):
def do_GET(self):
if self.path == '/':
try:
t = monotonic() - server_start
if t < loading_seconds:
self.send_error(503)
else:
self.send_response(200)
self.send_header('Content-Type', 'text/html')
self.end_headers()
response = f'<h2>{app_name} is running for {t:3.1f} seconds.</h2>n'
self.wfile.write(response.encode('utf-8'))
except Exception:
self.send_error(500)
else:
self.send_error(404)
httpd = HTTPServer(('', 8080), Handler)
server_start = monotonic()
print(f'{app_name} (loads in {loading_seconds} sec.) started.')
httpd.serve_forever()EOF
$ cat << EOF > Dockerfile
FROM python:alpine
EXPOSE 8080
COPY uptimer.py app.py
CMD [ "python", "-u", "./app.py" ]
EOF
$ docker build --tag uptimer .
Sending build context to Docker daemon 39.42kB
Step 1/4 : FROM python:alpine
---> 8ecf5a48c789
Step 2/4 : EXPOSE 8080
---> Using cache
---> cf92d174c9d3
Step 3/4 : COPY uptimer.py app.py
---> a7fbb33d6b7e
Step 4/4 : CMD [ "python", "-u", "./app.py" ]
---> Running in 1906b4bd9fdf
Removing intermediate container 1906b4bd9fdf
---> c1655b996fe8
Successfully built c1655b996fe8
Successfully tagged uptimer:latest
$ docker run --rm --detach --name uptimer --publish 8080:8080 uptimer
8f88c944b8bf78974a5727070a94c76aa0b9bb2b3ecf6324b784e782614b2fbf
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
8f88c944b8bf uptimer "python -u ./app.py" 3 seconds ago Up 5 seconds 0.0.0.0:8080->8080/tcp uptimer
$ docker logs uptimer
Uptimer v1.0 (loads in 10 sec.) started.
$ wget -qSO- http://localhost:8080
HTTP/1.0 503 Service Unavailable
Server: BaseHTTP/0.6 Python/3.8.3
Date: Sat, 22 Aug 2020 19:52:40 GMT
Connection: close
Content-Type: text/html;charset=utf-8
Content-Length: 484
$ wget -qSO- http://localhost:8080
HTTP/1.0 200 OK
Server: BaseHTTP/0.6 Python/3.8.3
Date: Sat, 22 Aug 2020 19:52:45 GMT
Content-Type: text/html
<h2>Uptimer v1.0 is running for 15.4 seconds.</h2>
$ docker rm --force uptimer
uptimerืคืึทืจืงืขืจื ืคืจืืงืกื
ืึผืื ืืื ืืืขืจ ืึทืคึผืืึทืงืืืฉืึทื ืืึธื ืืืื ืืืืืืช ืฆื ืืืืฉื ืึทื ื ืึธืืืืกื, ืขืก ืืื ื ืืืืืง ืึทื ืขืก ืืื ืขืืืขืืข ืื ืืขืจืข ืขื ืืืื ืืื ืคืจืึธื ื ืคืื ืขืก ืืืึธืก ืืืขื ืืึทืืึทืืื ืืืึทื ืคืึทืจืืืึทื. ืขืก ืงืขื ืืืื ืึท ืืืขื ืกืขืจืืืขืจ ะฒ . ื ืคืึทืจืงืขืจื ืคึผืจืึทืงืกื ืืื ืืขืืจืื ืืขื ืฆืืืืฉื ืืขื ืงืืืขื ื ืืื ืื ืึทืคึผืืึทืงืืืฉืึทื. ืขืก ืึทืงืกืขืคึผืฅ ืจืืงืืืขืก ืคืื ืงืืืืึทื ืฅ ืืื ืคืึธืจืืืขืจืื ืืื ืฆื ืื ืึทืคึผืืึทืงืืืฉืึทื ืืื ืคืึธืจืืืขืจืื ืื ืจืขืกืคึผืึธื ืกืขืก ืคืื ืื ืึทืคึผืืึทืงืืืฉืึทื ืฆื ืื ืงืืืืึทื ืฅ.
ืื ืึทืคึผืืึทืงืืืฉืึทื ืืื ืื ืคืึทืจืงืขืจื ืคึผืจืึทืงืกื ืงืขื ืขื ืืืื ืืื ืืงื ืืื ืื ืืึธืงืงืขืจ . ืืืื, ืืขืจ ืงืึทื ืืืื ืขืจ ืืื ืื ืึทืคึผืืึทืงืืืฉืึทื ืืื ื ืืฉื ืืคืืื ืืึทืจืคึฟื ืฆื ืคืึธืจืืืขืจืืื ืึท ืคึผืึธืจื ืืืืฃ ืืขืจ ืืึทืืขืืึธืก ืกืืกืืขื; ืืึธืก ืึทืืึทืื ืื ืึทืคึผืืึทืงืืืฉืึทื ืฆื ืืืื ืืึทืงืกืืืึทืืื ืืคืืขืืื ืืขืจื ืคืื ืคืื ืืจืืืกื ืืืง ืืจืขืฅ.
ืืืื ืื ืคืึทืจืงืขืจื ืคึผืจืึทืงืกื ืืขืื ืืืืฃ ืื ืื ืืขืจ ืืึทืืขืืึธืก, ืืืจ ืืืขื ืืึธืื ืฆื ืคืึทืจืืึธืื ืื ืืึธืงืงืขืจ ื ืขืฅ ืืื ืคืึทืจืืื ืื ืื ืึทืคึผืืึทืงืืืฉืึทื ืฆื ืื ืคืึทืจืงืขืจื ืคึผืจืึทืงืกื ืืืจื ืื ืืึทืืขืืึธืก ื ืขืฅ, ืคืึธืจืืืขืจืืื ื ืื ืคึผืึธืจื. annexes ืคึผืึทืจืึทืืขืืขืจ --publish, ืืื ืืื ืืขืจ ืขืจืฉืืขืจ ืึธื ืืืื ืืื ืืื ืืื ืื ืคืึทืจืงืขืจื ืคึผืจืึทืงืกื.
ืืืจ ืืืขืื ืืืืคื ืื ืคืึทืจืงืขืจื ืคึผืจืึทืงืกื ืืืืฃ ืคึผืึธืจื 80, ืืืืึทื ืืึธืก ืืื ืคึผืื ืงื ืื ืขื ืืืื ืืืึธืก ืืึธื ืืขืจื ืฆื ืื ืคืื ืืจืืืกื ืืืง ื ืขืฅ. ืืืื ืคึผืึธืจื 80 ืืื ืคืึทืจื ืืืขื ืืืืฃ ืืืื ืคึผืจืึธืืข ืืึทืืขืืึธืก, ืืืืฉื ืืขื ืคึผืึทืจืึทืืขืืขืจ --publish 80:80 ืืืืฃ --publish ANY_FREE_PORT:80.
ืืฉืืงืึทืืืข ืืขืงื ืืงืก
- "ืืื ืืึทื ืืฆืขืจ-ืืืฉืืคื ืืึธืงืงืขืจ ื ืขืืืืึธืจืงืก, ืืืจ ืงืขื ืขื ืืืขืจืืขืื ืืื ืงืึทื ืืืื ืขืจื ื ืื ืืืืื ืืืจื IP ืึทืืจืขืก. ืืขืจ ืงืึทื ืืืื ืขืจ ื ืึธืืขื ืืื ืืืื ืจืืืึทืืืื ืืื ืืืื IP ืึทืืจืขืก" (, ืคืื ื 5 ืคืื ืื ืืึธืงืงืขืจ ืงืึธื).
ืคึผืจืื ืืึทืื
$ docker network create web-gateway
5dba128fb3b255b02ac012ded1906b7b4970b728fb7db3dbbeccc9a77a5dd7bd
$ docker run --detach --rm --name uptimer --network web-gateway uptimer
a1105f1b583dead9415e99864718cc807cc1db1c763870f40ea38bc026e2d67f
$ docker run --rm --network web-gateway alpine wget -qO- http://uptimer:8080
<h2>Uptimer v1.0 is running for 11.5 seconds.</h2>
$ docker run --detach --publish 80:80 --network web-gateway --name reverse-proxy nginx:alpine
80695a822c19051260c66bf60605dcb4ea66802c754037704968bc42527bf120
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
80695a822c19 nginx:alpine "/docker-entrypoint.โฆ" 27 seconds ago Up 25 seconds 0.0.0.0:80->80/tcp reverse-proxy
a1105f1b583d uptimer "python -u ./app.py" About a minute ago Up About a minute 8080/tcp uptimer
$ cat << EOF > uptimer.conf
server {
listen 80;
location / {
proxy_pass http://uptimer:8080;
}
}
EOF
$ docker cp ./uptimer.conf reverse-proxy:/etc/nginx/conf.d/default.conf
$ docker exec reverse-proxy nginx -s reload
2020/06/23 20:51:03 [notice] 31#31: signal process started
$ wget -qSO- http://localhost
HTTP/1.1 200 OK
Server: nginx/1.19.0
Date: Sat, 22 Aug 2020 19:56:24 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
<h2>Uptimer v1.0 is running for 104.1 seconds.</h2>ืกืืืืึทืก ืืืคึผืืืืืึทื ื
ืืึธืืืจ ืึทืจืืืกืคืืจื ืึท ื ืืึทืข ืืืขืจืกืืข ืคืื โโโโืื ืึทืคึผืืึทืงืืืฉืึทื (ืืื ืึท ืฆืืืื-ืคืึทืจืืืืื ืกืืึทืจืืึทืคึผ ืคืึธืจืฉืืขืืื ื ืืืกื) ืืื ืคึผืจืืืืจื ืขืก ืกืืืืึทืกืื.
ืืฉืืงืึทืืืข ืืขืงื ืืงืก
echo 'my text' | docker exec -i my-container sh -c 'cat > /my-file.txt'โ ืฉืจืืืื ืืขืงืกืmy textืฆื ืืขืงืข/my-file.txtืื ืืขื ืงืึทื ืืืื ืขืจmy-container.cat > /my-file.txt- ืฉืจืืื ืื ืืื ืืึทืื ืคืื ื ืึธืจืืึทื ืึทืจืืึทื ืฉืจืืึทื ืฆื ืึท ืืขืงืข/dev/stdin.
ืคึผืจืื ืืึทืื
$ sed -i "s/app_version = 1/app_version = 2/" uptimer.py
$ docker build --tag uptimer .
Sending build context to Docker daemon 39.94kB
Step 1/4 : FROM python:alpine
---> 8ecf5a48c789
Step 2/4 : EXPOSE 8080
---> Using cache
---> cf92d174c9d3
Step 3/4 : COPY uptimer.py app.py
---> 3eca6a51cb2d
Step 4/4 : CMD [ "python", "-u", "./app.py" ]
---> Running in 8f13c6d3d9e7
Removing intermediate container 8f13c6d3d9e7
---> 1d56897841ec
Successfully built 1d56897841ec
Successfully tagged uptimer:latest
$ docker run --detach --rm --name uptimer_BLUE --network web-gateway uptimer
96932d4ca97a25b1b42d1b5f0ede993b43f95fac3c064262c5c527e16c119e02
$ docker logs uptimer_BLUE
Uptimer v2.0 (loads in 5 sec.) started.
$ docker run --rm --network web-gateway alpine wget -qO- http://uptimer_BLUE:8080
<h2>Uptimer v2.0 is running for 23.9 seconds.</h2>
$ sed s/uptimer/uptimer_BLUE/ uptimer.conf | docker exec --interactive reverse-proxy sh -c 'cat > /etc/nginx/conf.d/default.conf'
$ docker exec reverse-proxy cat /etc/nginx/conf.d/default.conf
server {
listen 80;
location / {
proxy_pass http://uptimer_BLUE:8080;
}
}
$ docker exec reverse-proxy nginx -s reload
2020/06/25 21:22:23 [notice] 68#68: signal process started
$ wget -qO- http://localhost
<h2>Uptimer v2.0 is running for 63.4 seconds.</h2>
$ docker rm -f uptimer
uptimer
$ wget -qO- http://localhost
<h2>Uptimer v2.0 is running for 84.8 seconds.</h2>
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
96932d4ca97a uptimer "python -u ./app.py" About a minute ago Up About a minute 8080/tcp uptimer_BLUE
80695a822c19 nginx:alpine "/docker-entrypoint.โฆ" 8 minutes ago Up 8 minutes 0.0.0.0:80->80/tcp reverse-proxyืืื ืืขื ืืื ืข, ืื ืืืื ืืื ืืขืืืื ืืืืึทื ืืืืฃ ืื ืกืขืจืืืขืจ, ืืืึธืก ืจืืงืืืืืขืจื ืื ืึทืคึผืืึทืงืืืฉืึทื ืงืืืืื ืฆื ืืืื ืืึธืจื, ืืื ืืืื ืืึธืืื ืื ืกืขืจืืืขืจ ืืื ืืื ืืืืืง ืึทืจืืขื. ืืขืจ ืืืืึทืืขืจ ืฉืจืื ืืื ืฆื ืึทืืึทืงืืื ืื ืืืื ืคึฟืึทืจืืึทืืืื ื ืฆื ืึท ืืึทืืื ืืขืจ ืืึทืฉืื (ืืืฉื ืฆื ืึท ืกื ืกืืกืืขื) ืืื ืืขืืึธืื ืึทืจืืืขืจืคืืจื ืขืก ืฆื ืื ืกืขืจืืืขืจ.
ืืจืึทื ืกืคืขืจืื ื ืืืืืขืจ
ืฆืื ืืึทืืืืขืจื, ืขืก ืืื ื ืืฉื ืืื ืขื ืฆื ืึทืจืืืขืจืคืืจื ืืืืืขืจ ืคืื ืืึธืงืึทืืืึธืกื ืฆื ืืึธืงืึทืืืึธืกื, ืึทืืื ืืขื ืึธืคึผืืืืืื ื ืงืขื ืขื ืืืื ืืงืกืคึผืืึธืจื ืืืืื ืืืื ืืืจ ืืึธืื ืฆืืืื ืืื ืืช ืืื ืืึธืงืขืจ ืืื ืืึทื ื. ืืื ืืื ืืืื ืขืก ืงืืงื ืขืคึผืขืก ืืื ืืึธืก:
$ ssh production-server docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
$ docker image save uptimer | ssh production-server 'docker image load'
Loaded image: uptimer:latest
$ ssh production-server docker image ls
REPOSITORY TAG IMAGE ID CREATED SIZE
uptimer latest 1d56897841ec 5 minutes ago 78.9MBืงืึธืืขืงืืืื docker save ืกืึทืืืขืก ืื ืืืื ืืึทืื ืืื ืึท .ืืึทืจ ืึทืจืงืืืื, ืืืึทืืฉ ืขืก ืืืืื ืืืขืื 1.5 ืืื ืืขืจ ืืื ืขืก ืืืึธืื ืืืขืื ืืื ืงืึทืืคึผืจืขืกื ืคืึธืจืขื. ืึทืืื ืืึธืื ืก ืืจืืืกืืขื ืขืก ืืื ืื ื ืึธืืขื ืคืื ืฉืคึผืึธืจื ืฆืืื ืืื ืคืึทืจืงืขืจ:
$ docker image save uptimer | gzip | ssh production-server 'zcat | docker image load'
Loaded image: uptimer:latestืืืจ ืงืขื ืขื ืืืื ืืึธื ืืืึธืจ ืื ืืึทืื ืืึธืืืื ื ืคึผืจืึธืฆืขืก (ืืึธืืฉ ืืึธืก ืจืืงืืืืืขืจื ืึท ืืจืื ืืืืืืืืึทื ื ืืฆื):
$ docker image save uptimer | gzip | pv | ssh production-server 'zcat | docker image load'
25,7MiB 0:01:01 [ 425KiB/s] [ <=> ]
Loaded image: uptimer:latestืขืฆื: ืืืื ืืืจ ืืึทืจืคึฟื ืึท ืืื ืื ืคืื ืคึผืึทืจืึทืืขืืขืจืก ืฆื ืคืึทืจืืื ืื ืฆื ืึท ืกืขืจืืืขืจ ืืืจื SSH, ืืืจ ืงืขื ื ืืฉื ื ืืฆื ืื ืืขืงืข
~/.ssh/config.
ืืจืึทื ืกืคืขืจืื ื ืื ืืืื ืืืจื docker image save/load - ืืึธืก ืืื ืื ืืขืจืกื ืืื ืืืึทืืืกืืืง ืืืคึฟื, ืึธืืขืจ ื ืืฉื ืืขืจ ืืืืื. ืขืก ืืขื ืขื ืื ืืขืจืข:
- ืงืึทื ืืืื ืขืจ ืจืขืืืกืืจื (ืืื ืืืกืืจืืข ื ืึธืจืืึทื).
- ืคืึทืจืืื ืื ืฆื ืืึธืงืงืขืจ ืืืืืึทื ืกืขืจืืืขืจ ืคืื ืื ืื ืืขืจ ืืึทืืขืืึธืก:
- ืกืืืืืืข ืืืึทืืขืืืืืง
DOCKER_HOST. - ืืึทืคึฟืขืื ืฉืืจื ืึธืคึผืฆืืข
-Hืึธืืขืจ--hostืงืืืืขdocker-compose. docker context
- ืกืืืืืืข ืืืึทืืขืืืืืง
ืื ืจืืข ืืืคึฟื (ืืื ืืจืืึท ืึธืคึผืฆืืขืก ืคึฟืึทืจ ืืืึทื ืืืคึผืืึทืืขื ืืืืฉืึทื) ืืื ืืขืืื ื ืืืกืงืจืืืื ืืื ืืขื ืึทืจืืืงื .
deploy.sh
ืืืฆื ืืึธืื ืืื ืื ืงืืืึทืื ืึทืืฅ ืืืึธืก ืืืจ ืืึธืื ืืึทื ืืืึทืื ืืื ืืืื ืฉืจืืคื. ืืึธืืืจ ืึธื ืืืืื ืืื ืื ืฉืคึผืืฅ-ืืืจืื ืคืื ืงืฆืืข, ืืื ืืึทื ืงืืง ืืื ืื ืื ืืขืจืข ืืขื ืืฆื ืืื ืขืก.
ืืฉืืงืึทืืืข ืืขืงื ืืงืก
${parameter?err_msg}- ืืืื ืขืจ ืคืื ืื ืืึทืืืฉ ืกืคึผืขืื ืคืื ืืึทืฉ (ืึทืงืึท ). ืืืืparameterื ืื ืกืคึผืขืกืึทืคืืื, ืจืขืืืืืึทืerr_msgืืื ืึทืจืืืกืืึทื ื ืืื ืงืึธื 1.docker --log-driver journald- ืืืจื ืคืขืืืงืืึทื, ืื ืืึธืงืงืขืจ ืืึธืืื ื ืฉืึธืคืขืจ ืืื ืึท ืืขืงืกื ืืขืงืข ืึธื ืจืึธืืืืืฉืึทื. ืืื ืืขื ืฆืืืึทื ื, ืื ืืึธืืก ืืขืฉืืืื ื ืคึผืืึธืืืืจื ืื ืืื ืฆืข ืืืกืง, ืึทืืื ืคึฟืึทืจ ืึท ืคึผืจืึธืืืงืฆืืข ืกืืืืืืข ืขืก ืืื ื ืืืืืง ืฆื ืืืืฉื ืื ืฉืึธืคืขืจ ืฆื ืึท ืกืืึทืจืืขืจ.
ืืืคึผืืืืืึทื ื ืฉืจืืคื
deploy() {
local usage_msg="Usage: ${FUNCNAME[0]} image_name"
local image_name=${1?$usage_msg}
ensure-reverse-proxy || return 2
if get-active-slot $image_name
then
local OLD=${image_name}_BLUE
local new_slot=GREEN
else
local OLD=${image_name}_GREEN
local new_slot=BLUE
fi
local NEW=${image_name}_${new_slot}
echo "Deploying '$NEW' in place of '$OLD'..."
docker run
--detach
--restart always
--log-driver journald
--name $NEW
--network web-gateway
$image_name || return 3
echo "Container started. Checking health..."
for i in {1..20}
do
sleep 1
if get-service-status $image_name $new_slot
then
echo "New '$NEW' service seems OK. Switching heads..."
sleep 2 # Ensure service is ready
set-active-slot $image_name $new_slot || return 4
echo "'$NEW' service is live!"
sleep 2 # Ensure all requests were processed
echo "Killing '$OLD'..."
docker rm -f $OLD
docker image prune -f
echo "Deployment successful!"
return 0
fi
echo "New '$NEW' service is not ready yet. Waiting ($i)..."
done
echo "New '$NEW' service did not raise, killing it. Failed to deploy T_T"
docker rm -f $NEW
return 5
}ืคึฟืขืึดืงืืืื ืืขื ืืฆื:
ensure-reverse-proxy- ืืืื ืืืืขืจ ืึทื ืื ืคืึทืจืงืขืจื ืคึผืจืึทืงืกื ืืื ืืจืืขืื (ื ืืฆืืง ืคึฟืึทืจ ืืขืจ ืขืจืฉืืขืจ ืืืคึผืืืืืึทื ื)get-active-slot service_name- ืืืืขืจืืึทื ื ืืืึธืก ืฉืคึผืขืืื ืืื ืืืฆื ืึทืงืืืื ืคึฟืึทืจ ืึท ืืขืืขืื ืืื ืกื (BLUEืึธืืขืจGREEN)get-service-status service_name deployment_slot- ืืืืขืจืืึทื ื ืฆื ืื ืืื ืกื ืืื ืืจืืื ืฆื ืคึผืจืึธืฆืขืก ืื ืงืึทืืื ื ืจืืงืืืขืกset-active-slot service_name deployment_slot- ืขื ืืขืจืื ืืขื ืื nginx ืงืึทื ืคืืืืขืจืืืฉืึทื ืืื ืื ืคืึทืจืงืขืจื ืคึผืจืึทืงืกื ืงืึทื ืืืื ืขืจ
ืืื ืืืื ืงืืื ื:
ensure-reverse-proxy() {
is-container-up reverse-proxy && return 0
echo "Deploying reverse-proxy..."
docker network create web-gateway
docker run
--detach
--restart always
--log-driver journald
--name reverse-proxy
--network web-gateway
--publish 80:80
nginx:alpine || return 1
docker exec --interactive reverse-proxy sh -c "> /etc/nginx/conf.d/default.conf"
docker exec reverse-proxy nginx -s reload
}
is-container-up() {
local container=${1?"Usage: ${FUNCNAME[0]} container_name"}
[ -n "$(docker ps -f name=${container} -q)" ]
return $?
}
get-active-slot() {
local service=${1?"Usage: ${FUNCNAME[0]} service_name"}
if is-container-up ${service}_BLUE && is-container-up ${service}_GREEN; then
echo "Collision detected! Stopping ${service}_GREEN..."
docker rm -f ${service}_GREEN
return 0 # BLUE
fi
if is-container-up ${service}_BLUE && ! is-container-up ${service}_GREEN; then
return 0 # BLUE
fi
if ! is-container-up ${service}_BLUE; then
return 1 # GREEN
fi
}
get-service-status() {
local usage_msg="Usage: ${FUNCNAME[0]} service_name deployment_slot"
local service=${1?usage_msg}
local slot=${2?$usage_msg}
case $service in
# Add specific healthcheck paths for your services here
*) local health_check_port_path=":8080/" ;;
esac
local health_check_address="http://${service}_${slot}${health_check_port_path}"
echo "Requesting '$health_check_address' within the 'web-gateway' docker network:"
docker run --rm --network web-gateway alpine
wget --timeout=1 --quiet --server-response $health_check_address
return $?
}
set-active-slot() {
local usage_msg="Usage: ${FUNCNAME[0]} service_name deployment_slot"
local service=${1?$usage_msg}
local slot=${2?$usage_msg}
[ "$slot" == BLUE ] || [ "$slot" == GREEN ] || return 1
get-nginx-config $service $slot | docker exec --interactive reverse-proxy sh -c "cat > /etc/nginx/conf.d/$service.conf"
docker exec reverse-proxy nginx -t || return 2
docker exec reverse-proxy nginx -s reload
}ืคืื ืงืฆืืึธื ืืจื get-active-slot ืืึทืจืฃ ืึท ืืืกื ืืขืจืงืืขืจืื ื:
ืคืืจืืืืก ืงืืื ืขืก ืฆืืจืืง ืึท ื ืืืขืจ ืืื ื ืืฉื ืจืขืืืืืึทื ืึท ืฉืืจืืงื?
ืกืืึท ืืื ืกืืึท, ืืื ืื ืคืึทื ืคืื ืงืฆืืข ืืืจ ืงืึธื ืืจืึธืืืจื ืื ืจืขืืืืืึทื ืคืื ืืืื ืึทืจืืขื, ืืื ืงืึธื ืืจืึธืืืจื ืื ืึทืจืืืกืืึทื ื ืงืึธื ืืื Bash ืืื ืคืื ืืจืื ืืขืจ ืืื ืฆื ืงืึธื ืืจืึธืืืจื ืึท ืฉืืจืืงื. ืืื ืืขืจืฆื, ืืึทืงืืืขื ืึท ืฉืืจืืงื ืคืื ืขืก ืืื ืืืืขืจ ืคึผืฉืื:
get-active-slot service && echo BLUE || echo GREEN.
ืืขื ืขื ืืจืื ืืืืื ืืื ืืขื ืืึทืงืข ืืขื ืื ืฆื ืืืกืืืืื ืึทืืข ืฉืืึทืื?
ืืคืืื ืฆืืืื ืืืขื ืืืื ืืขื ืื, ืื ืืขืฆืืข ืืื ืืึธ ื ืึธืจ ืคึฟืึทืจ ืืึทื ืฅ, ื ืืฉื ืฆื ืฉืจืืึทืื else.
ืืืืื ืื ืคึฟืื ืงืฆืืข ืืืึธืก ืงืขืจื nginx configs ืืืืืื ืึทื ืืืคืืื ื: get-nginx-config service_name deployment_slot. ืืืื ืึทื ืึทืืึทืืืฉื ืืื ืืขืืื ื ืืฉืขืง, ืืึธ ืืืจ ืงืขื ืขื ืฉืืขืื ืงืืื ืงืึทื ืคืืืืขืจืืืฉืึทื ืคึฟืึทืจ ืงืืื ืืื ืกื. ืคืื ืื ืืฉืืงืึทืืืข ืืืื - ืืืืื cat <<- EOF, ืืืึธืก ืึทืืึทืื ืืืจ ืฆื ืืึทืืืึทืืืงื ืึทืืข ืืึทืืก ืืื ืื ืึธื ืืืื. ืืืช, ืื ืคึผืจืืึทื ืคืื ืืื ืคืึธืจืืึทืืืื ื ืืื ืืขืืืฉื ืืึทืืก ืืื ืกืคึผืืืกืึทื, ืืืึธืก ืืืึทื ื ืืื ืืขืืืืื ืืืืขืจ ืฉืืขืื ืคืึธืจืขื. ืึธืืขืจ ืืึทืฉ ืคืึธืจืกืขืก ืืึทืืก, ืืื ืขืก ืืืึธืื ืืืื ืืืื ืคืืึทื ืฆื ืืึธืื ื ืึธืจืืึทื ืคืึธืจืืึทืืืื ื ืืื ืื nginx ืงืึทื ืคืืืืขืจืืืฉืึทื. ืืื ืงืืจืฅ, ืืืงืกืื ื ืืึทืืก ืืื ืกืคึผืืืกืึทื ืืึธ ืืึทืงืข ืืืื ื ืืื ืืขืจ ืืขืกืืขืจ ืืืืืื ื ืคืื ืื ืขืจืืกื. ืึธืืขืจ, ืืืจ ืืืขื ื ืืฉื ืืขื ืืขื ืืื ืื ืกื ืืคึผืึทื ืืื ืื, ืืื ื Habr "ืืื ืขืก ืืื" ืืืจื ืืฉืึทื ืืื ื ืึทืืข ืืึทืืก ืฆื 4 ืกืคึผืืืกืึทื ืืื ืืึทืื EOF ืคืึทืจืงืจืืคึผืื. .
ืืื ื ืืฉื ืฆื ืืืืคืฉืืืื ืฆืืืื ืืื, ืืืขื ืืื ืืืจ ืืืืื ืืขืจืฆืืืื
cat << 'EOF', ืฐืขืืืข ืจ ืฐืข ื ืฉืคืขืืข ืจ ืืจืขืค ื . ืืืื ืื ืฉืจืืืืกื ืคืฉืืcat << EOF, ืืขืืึธืื ืื ืืขืจืขืืึธืง ืื ืฉืืจืืงื ืืื ืื ืืขืจืคึผืึธืืึทืืขื (ืืืขืจืึทืืึทืื ืืขื ืขื ืืงืกืคึผืึทื ืืื ($foo), ืืึทืคึฟืขื ืจืืคื ($(bar)) ืขืืง.), ืืื ืืืื ืืืจ ืขื ืงืืึธืื ืื ืกืืฃ ืคืื ืืึธืงืืืขื ื ืืื ืืืื ืงืืืึธืืขืก, ืื ืืขืจืคึผืึธืืึทืืืึธื ืืื ืคืึทืจืงืจืืคึผืื ืืื ืืขืจ ืกืืืืึธื$ืืื ืืขืืืืื ืืื ืืื. ืืืึธืก ืืืจ ืืึทืจืคึฟื ืฆื ืึทืจืืึทื ืืืืื ืึท ืฉืจืืคื ืืื ืื ืื ืืขืจ ืฉืจืืคื.
get-nginx-config() {
local usage_msg="Usage: ${FUNCNAME[0]} service_name deployment_slot"
local service=${1?$usage_msg}
local slot=${2?$usage_msg}
[ "$slot" == BLUE ] || [ "$slot" == GREEN ] || return 1
local container_name=${service}_${slot}
case $service in
# Add specific nginx configs for your services here
*) nginx-config-simple-service $container_name:8080 ;;
esac
}
nginx-config-simple-service() {
local usage_msg="Usage: ${FUNCNAME[0]} proxy_pass"
local proxy_pass=${1?$usage_msg}
cat << EOF
server {
listen 80;
location / {
proxy_pass http://$proxy_pass;
}
}
EOF
}ืืืก ืืื ืืขืจ ืืื ืฆืขืจ ืฉืจืืคื. ืืื ืึทื ืคึฟืึทืจ ืืึทืื ืืึธืืืื ื ืืืจื wget ืึธืืขืจ curl.
ืขืงืกืึทืงืืืืื ื ืคึผืึทืจืึทืืขืืขืจืืืื ืกืงืจืืคึผืก ืืืืฃ ืึท ืืืืึทื ืกืขืจืืืขืจ
ืขืก ืืื ืฆืืื ืฆื ืงืืึทืคึผื ืืืืฃ ืื ืฆืื ืกืขืจืืืขืจ. ืืืก ืืื localhost ืืึทื ืฅ ืคึผืึทืกืืง:
$ ssh-copy-id localhost
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
himura@localhost's password:
Number of key(s) added: 1
Now try logging into the machine, with: "ssh 'localhost'"
and check to make sure that only the key(s) you wanted were added.ืืืจ ืืึธืื ืืขืฉืจืืื ืึท ืืืคึผืืืืืึทื ื ืฉืจืืคื ืืืึธืก ืืึทืื ืืึธืืื ืึท ืคืึทืจ-ืืขืืืื ืืืื ืฆื ืื ืฆืื ืกืขืจืืืขืจ ืืื ืกืืืืึทืกืื ืจืืคึผืืืืกืื ืื ืกืขืจืืืืก ืงืึทื ืืืื ืขืจ, ืึธืืขืจ ืืื ืงืขื ืขื ืืืจ ืืืกืคืืจื ืขืก ืืืืฃ ืึท ืืืืึทื ืืึทืฉืื? ืืขืจ ืฉืจืืคื ืืื ืึทืจืืืืขื ืื, ืืืืึทื ืขืก ืืื ืื ืืืืขืจืกืึทื ืืื ืงืขื ืขื ืฆืขืืืืงืืขื ืขืืืขืืข ืืึทืืื ืื ืืก ืืื ืึทืืึธื ืืื ืืขืจ ืืืื ืคืึทืจืงืขืจื ืคึผืจืึทืงืกื (ืืืจ ืงืขื ืขื ื ืืฆื nginx ืงืึทื ืคืืืืขืจืืืฉืึทื ื ืฆื ืืึทืฉืืืกื ืืืึธืก URL ืืืขื ืืืื ืืืึธืก ืืื ืกื). ืืขืจ ืฉืจืืคื ืงืขื ืขื ื ืื ืืืื ืกืืึธืจื ืืืืฃ ืื ืกืขืจืืืขืจ, ืืืืึทื ืืื ืืขื ืคืึทื, ืืืจ ืงืขื ืขื ื ืืฉื ืืืืืึธืืึทืืืฉ ืืขืจืืืึทื ืืืงื ืขืก (ืคึฟืึทืจ ืื ืฆืื ืคืื ืืฉืืง ืคืืงืกืื ืืื ืึทืืื ื ื ืืึท ืืึทืืื ืื ืืก), ืืื ืืื ืึทืืืขืืืื, ืฉืืึทื = ืืืื.
ืืืืืื ื 1: ื ืึธื ืงืจืึธื ืื ืฉืจืืคื ืืืืฃ ืื ืกืขืจืืืขืจ, ืึธืืขืจ ื ืึธืืืึทืื ืขืก ืืขืืขืจ ืืึธื scp. ืืขืจื ืึธื ืคืึทืจืืื ืื ืืืจื ssh ืืื ืืืกืคืืจื ืื ืฉืจืืคื ืืื ืื ื ืืืืืง ืึทืจืืืืขื ืื.
ืงืึธื ืก:
- ืฆืืืื ืึทืงืฉืึทื ื ืึทื ืฉืืึธื ืคืื ืืืื
- ืขืก ืงืขื ื ืืฉื ืืืื ืึท ืึธืจื ืืื ืืืจ ื ืึธืืืึทืื, ืึธืืขืจ ืขืก ืงืขื ื ืืฉื ืืืื ืึทืงืกืขืก ืฆื ืขืก, ืึธืืขืจ ืื ืฉืจืืคื ืงืขื ืืืื ืขืงืกืึทืงืืืืึทื ืืื ืืขืจ ืฆืืื ืคืื ืกืึทืืกืืืืืฉืึทื.
- ืขืก ืืื ืงืขืืืึทืืง ืฆื ืจืืื ืึทืจืืืฃ ื ืึธื ืืื (ืืืกืืขืงื ืื ืฉืจืืคื).
- ืฉืืื ืืจืื ืึทืงืฉืึทื ื.
ืืืืืื ื 2:
- ืืึทืืื ืืืืื ืคึฟืื ืงืฆืืข ืืื ืืื ืืขื ืฉืจืืคื ืืื ืืืืคื ืืึธืจื ืืฉื
- ื ืืฆื
sedืืืืื ืึท ืคืื ืงืฆืืข ืจืืคื ืฆื ืื ืกืืฃ - ืฉืืงื ืขืก ืึทืืข ืืืืึทื ืฆื shh ืืืจื ืจืขืจ (
|)
ืคึผืจืึธืก:
- ืืืืช ืกืืขืืืืื
- ืงืืื ืืืืืขืจืคึผืืึทืืข ืขื ืืืืื
- ืืขืคืื ืงืื
ืืื ืก ื ืึธืจ ืืึธื ืขืก ืึธื Ansible. ืืึธ, ืึทืืฅ ืืื ืฉืืื ืื ืืืขื ืืื. ืืึธ, ืึท ืืืขืืึธืกืืคึผืขื. ืงืืง ืืื ืคึผืฉืื, ืขืืขืืึทื ื ืืื ืืื ืืืึทืืืกืืืง ืื ืืืืง ืืื:
$ cat << 'EOF' > deploy.sh#!/bin/bash
usage_msg="Usage: $0 ssh_address local_image_tag"
ssh_address=${1?$usage_msg}
image_name=${2?$usage_msg}
echo "Connecting to '$ssh_address' via ssh to seamlessly deploy '$image_name'..."
( sed "$a deploy $image_name" | ssh -T $ssh_address ) << 'END_OF_SCRIPT'
deploy() {
echo "Yay! The '${FUNCNAME[0]}' function is executing on '$(hostname)' with argument '$1'"
}
END_OF_SCRIPTEOF
$ chmod +x deploy.sh
$ ./deploy.sh localhost magic-porridge-pot
Connecting to localhost...
Yay! The 'deploy' function is executing on 'hut' with argument 'magic-porridge-pot'ืึธืืขืจ, ืืืจ ืงืขื ืขื ื ืืฉื ืืืื ืืืืขืจ ืึทื ืืขืจ ืืืืึทื ืืึทืืขืืึธืก ืืื ืืืืื ืืึทืฉ, ืึทืืื ืืืจ ืืืขืื ืืืืื ืึท ืงืืืื ืืฉืขืง ืืื ืื ืึธื ืืืื (ืืึธืก ืืื ืึทื ืฉืืึธื ืคืื ):
if [ "$SHELL" != "/bin/bash" ]
then
echo "The '$SHELL' shell is not supported by 'deploy.sh'. Set a '/bin/bash' shell for '$USER@$HOSTNAME'."
exit 1
fiืืื ืืืฆื ืขืก ืืื ืคืึทืงืืืฉ:
$ docker exec reverse-proxy rm /etc/nginx/conf.d/default.conf
$ wget -qO deploy.sh https://git.io/JUURc
$ chmod +x deploy.sh
$ ./deploy.sh localhost uptimer
Sending gzipped image 'uptimer' to 'localhost' via ssh...
Loaded image: uptimer:latest
Connecting to 'localhost' via ssh to seamlessly deploy 'uptimer'...
Deploying 'uptimer_GREEN' in place of 'uptimer_BLUE'...
06f5bc70e9c4f930e7b1f826ae2ca2f536023cc01e82c2b97b2c84d68048b18a
Container started. Checking health...
Requesting 'http://uptimer_GREEN:8080/' within the 'web-gateway' docker network:
HTTP/1.0 503 Service Unavailable
wget: server returned error: HTTP/1.0 503 Service Unavailable
New 'uptimer_GREEN' service is not ready yet. Waiting (1)...
Requesting 'http://uptimer_GREEN:8080/' within the 'web-gateway' docker network:
HTTP/1.0 503 Service Unavailable
wget: server returned error: HTTP/1.0 503 Service Unavailable
New 'uptimer_GREEN' service is not ready yet. Waiting (2)...
Requesting 'http://uptimer_GREEN:8080/' within the 'web-gateway' docker network:
HTTP/1.0 200 OK
Server: BaseHTTP/0.6 Python/3.8.3
Date: Sat, 22 Aug 2020 20:15:50 GMT
Content-Type: text/html
New 'uptimer_GREEN' service seems OK. Switching heads...
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
2020/08/22 20:15:54 [notice] 97#97: signal process started
The 'uptimer_GREEN' service is live!
Killing 'uptimer_BLUE'...
uptimer_BLUE
Total reclaimed space: 0B
Deployment successful!ืืืฆื ืืืจ ืงืขื ืขื ืขืคืขื ืขื ืืื ืืขื ืืืขืืขืจืขืจ, โโืืืืคื ืื ืืืคึผืืืืืึทื ื ืืืืืขืจ ืืื ืืึทืื ืืืืขืจ ืึทื ืขืก ืืืืคื ืกืืืืึทืก ืืืจื ืึทืคึผืืืืืื ื ืื ืืืึทื ืืืื ืื ืกื ืืขืฉืึทืก ืื ืืืืกืืืื.
ืื ืืืืกื ื ืืฉื ืคืึทืจืืขืกื ืฆื ืจืืื ืึทืจืืืฃ ื ืึธื ืึทืจืืขื: 3
$ docker rm -f uptimer_GREEN reverse-proxy
uptimer_GREEN
reverse-proxy
$ docker network rm web-gateway
web-gateway
$ cd ..
$ rm -r blue-green-deploymentืืงืืจ: www.habr.com