PHP 8.0 - unable to install php-amqp extension

Hi! I have difficulties installing needed php version and extensions using the example from Readme.md Maybe I'm missing something but so far it looks like an issue...

Steps to reproduce:

create a Dockerfile with the following content:
```
FROM alpine:3.12
```

ADD https://php.hernandev.com/key/php-alpine.rsa.pub /etc/apk/keys/php-alpine.rsa.pub

RUN apk --update-cache add ca-certificates && \ echo "https://php.hernandev.com/v3.12/php-8.0" >> /etc/apk/repositories

RUN apk add --update-cache php RUN apk add --update-cache php-json RUN apk add --update-cache php-amqp

2. build image `docker build .`

Expected Result:

1. The image successfully created
2. PHP 8.0 is installed along with `php-json` and `php-amqp` extensions

Actual Result:
1. Image build fails due to error while installing `php-amqp` (not expected)
2. `php7` and `php7-json` are installed (expected version 8)

See `docker build .` output:
```shell
Sending build context to Docker daemon  103.4kB
Step 1/6 : FROM alpine:3.12
 ---> b0925e081921
Step 2/6 : ADD https://php.hernandev.com/key/php-alpine.rsa.pub /etc/apk/keys/php-alpine.rsa.pub
Downloading [==================================================>]     451B/451B

 ---> a10e1d673df0
Step 3/6 : RUN apk --update-cache add ca-certificates &&     echo "https://php.hernandev.com/v3.12/php-8.0" >> /etc/apk/repositories
 ---> Running in 25f3c9af2615
fetch http://dl-cdn.alpinelinux.org/alpine/v3.12/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.12/community/x86_64/APKINDEX.tar.gz
(1/1) Installing ca-certificates (20211220-r0)
Executing busybox-1.31.1-r21.trigger
Executing ca-certificates-20211220-r0.trigger
OK: 6 MiB in 15 packages
Removing intermediate container 25f3c9af2615
 ---> d8539a26d104
Step 4/6 : RUN apk add --update-cache php
 ---> Running in caaf708e69e7
fetch https://php.hernandev.com/v3.12/php-8.0/x86_64/APKINDEX.tar.gz
(1/9) Installing php7-common (7.3.33-r0)
(2/9) Installing argon2-libs (20190702-r1)
(3/9) Installing ncurses-terminfo-base (6.2_p20200523-r1)
(4/9) Installing ncurses-libs (6.2_p20200523-r1)
(5/9) Installing libedit (20191231.3.1-r0)
(6/9) Installing pcre2 (10.35-r0)
(7/9) Installing xz-libs (5.2.5-r0)
(8/9) Installing libxml2 (2.9.12-r0)
(9/9) Installing php7 (7.3.33-r0)
Executing busybox-1.31.1-r21.trigger
OK: 14 MiB in 24 packages
Removing intermediate container caaf708e69e7
 ---> dfb2678d5533
Step 5/6 : RUN apk add --update-cache php-json
 ---> Running in 81c3543ca47a
(1/1) Installing php7-json (7.3.33-r0)
OK: 14 MiB in 25 packages
Removing intermediate container 81c3543ca47a
 ---> 49b495de2957
Step 6/6 : RUN apk add --update-cache php-amqp
 ---> Running in 1fbf7e53fe23
ERROR: unable to select packages:
  php-amqp (no such package):
    required by: world[php-amqp]
The command '/bin/sh -c apk add --update-cache php-amqp' returned a non-zero code: 1

Thanks!

codecasts / php-alpine

PHP 8.0 - unable to install php-amqp extension #159