Three ways to copy and share data to a Docker container:
-
Providing data on build time: Docker ADD vs COPY
-
Providing data on run time: How to copy files to or from a Docker container
-
Sharing data via volumes: Using volumes in Docker Compose
Three ways to copy and share data to a Docker container:
Providing data on build time: Docker ADD vs COPY
Providing data on run time: How to copy files to or from a Docker container
Sharing data via volumes: Using volumes in Docker Compose
version: '3' | |
networks: | |
test_net: | |
services: | |
webserver: | |
image: nginx:alpine | |
command: sh -c 'sleep 10 && nginx -g "daemon off;"' | |
networks: | |
- test_net |
#!/usr/bin/env bash | |
echo '{"cities": [{"name": "Barcelona"}, {"name": "Copenhagen"}, {"name": "Edinburgh"}, {"name": "Hanoi"}]}' > /tmp/cities.json | |
docker run -d -p 80:80 -v /tmp/cities.json:/data/db.json clue/json-server | |
# Listing my favourite cities | |
curl http://localhost/cities | |
[ | |
{"name": "Barcelona"}, | |
{"name": "Copenhagen"}, |
A user wants profile data from an app.
# run mongo
$ docker run --rm --name my-mongo -it -p 27017:27017 mongo:3.2.7
# or as a daemon
$ docker run --name my-mongo -d mongo:3.2.7
# connect to the previous container.. with another container
$ docker run -it --link my-mongo:mongo --rm mongo:3.2.7 sh -c 'exec mongo "$MONGO_PORT_27017_TCP_ADDR:$MONGO_PORT_27017_TCP_PORT/test"'
require 'benchmark' | |
require 'ostruct' | |
Benchmark.bm 10 do |bench| | |
bench.report "Hash: " do | |
10_000_000.times do { name: "John Doe", age: 32 } end | |
end | |
bench.report "Struct: " do | |
Person = Struct.new(:name, :age) |
# start vm | |
vboxmanage startvm vm_name | |
# stop vm | |
vboxmanage controlvm vm_name poweroff | |
# clone vm | |
vboxmanage clonevm vm_name --name new_vm_name --register --mode all |
## | |
# /etc/nginx/sites-available/my_site.conf | |
# forces https | |
server { | |
listen 80; | |
return 301 https://my_server$request_uri; | |
} | |
server { |
Display all envs vars
printenv
Set $JAVA_HOME and $SCALA_HOME (Mac OS X)
export JAVA_HOME=$(/usr/libexec/java_home)
export SCALA_HOME=/usr/local/share/scala
export PATH=${PATH}:$JAVA_HOME/bin:$SCALA_HOME/bin