100daysofdevops

resource "aws_route53_record" "sdlc-scm-route53-record" { 
  count   = "${length(var.hostname)}" 
  name    = "${element(var.hostname,count.index )}" 
  type    = "A" 
  zone_id = "${var.zone_id}" 
  records = ["${element(var.arecord, count.index)}"] 
  ttl     = "300" 
} 

100daysofdevops

$ docker container run -it alpine /bin/sh
/ #

100daysofdevops

$ docker container ls -a
CONTAINER ID        IMAGE               COMMAND             CREATED
     STATUS                       PORTS               NAMES
a6e7f019a727        alpine              "/bin/sh"           8 minutes ago
     Exited (0) 8 minutes ago                         cool_swirles
e0cd40a8d6b6        alpine              "ls -l"             21 minutes ago
     Exited (0) 21 minutes ago                        frosty_nobel
ef57f217de51        hello-world         "/hello"            40 minutes ago
     Exited (0) 40 minutes ago                        tender_franklin

100daysofdevops

$ docker container ls
CONTAINER ID        IMAGE               COMMAND             CREATED
     STATUS              PORTS               NAMES

100daysofdevops

$ docker container run alpine ls -l
total 8
drwxr-xr-x    2 root     root          4096 Aug 20 10:30 bin
drwxr-xr-x    5 root     root           340 Oct  5 03:12 dev
drwxr-xr-x    1 root     root            66 Oct  5 03:12 etc
drwxr-xr-x    2 root     root             6 Aug 20 10:30 home
drwxr-xr-x    5 root     root           185 Aug 20 10:30 lib
drwxr-xr-x    5 root     root            44 Aug 20 10:30 media
drwxr-xr-x    2 root     root             6 Aug 20 10:30 mnt
drwxr-xr-x    2 root     root             6 Aug 20 10:30 opt

100daysofdevops

$ docker image ls
REPOSITORY          TAG                 IMAGE ID            CREATED     SIZE
alpine              latest              961769676411        6 weeks ago     5.58MB
hello-world         latest              fce289e99eb9        9 months ago     1.84kB

100daysofdevops

$ docker image pull alpine
Using default tag: latest
latest: Pulling from library/alpine
9d48c3bd43c5: Pull complete
Digest: sha256:72c42ed48c3a2db31b7dafe17d275b634664a708d901ec9fd57b1529280f01fb
Status: Downloaded newer image for alpine:latest
docker.io/library/alpine:latest

100daysofdevops

$ docker container run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
1b930d010525: Pull complete
Digest: sha256:b8ba256769a0ac28dd126d584e0a2011cd2877f3f76e093a7ae560f2a5301c00
Status: Downloaded newer image for hello-world:latest

Hello from Docker!
This message shows that your installation appears to be working correctly.

100daysofdevops

package main

import "fmt"

func main() {
	a := [...]int{1,2,3}
	b := &a
	b[1] = 4
	fmt.Println(a)
	fmt.Println(b)

100daysofdevops

package main

import "fmt"

func main() {
	a := [...]int{1,2,3}
	b := a
	b[1] = 4
	fmt.Println(a)
	fmt.Println(b)