I'm new to bash testing and wanted to create a docker image to test a cli. I discovered 'expect' and wanted to try it against this example bash script. Only problem is its failing to spawn a file.
data/que.sh
#!/bin/bash
echo "Enter your name"
read $REPLY
echo "Enter your age"
read $REPLY
echo "Enter your salary"
read $REPLY
data/test.sh
#!/usr/bin/expect -f
set timeout 2
spawn /data/que.sh
expect "Enter your name\r"
send -- "I am Steve\r"
expect "Enter your age\r"
send -- "2\r"
expect "Enter your salary\r"
send -- "10k\r"
expect eof
docker-compose.yml
services:
linux-expect:
container_name: cont-alpine-linux-expect
image: img-alpine-linux-expect
build:
context: .
Dockefile
FROM alpine:latest
RUN apk add --update nodejs-current npm
USER root
RUN apk update && apk add expect
RUN mkdir data
COPY data /data
CMD ["node", "-e","setTimeout(() => console.log(999999), 99999999)"]
# Just run temporary timeout so we can interact with script
terminal command
new terminal
I am getting an error to find this file, but it does exist. I am the root user.
Error
"spawn /data/que.sh" (file "data/test.sh" line 4)
The problem is that it can't find bash. You have
#!/bin/bash
as the first line in your script, so the shell looks for bash to run it. But bash isn't installed in Alpine images.
You can see if your script runs with /bin/sh. I believe that's the ash shell in Alpine images. If that doesn't work, you can install bash in the image using apk.