/bin/sh: zypper: not found (Docker)

Question

I am trying to create and image. But when I run docker build . I keep getting the error:

Step 6/7 : RUN zypper update && zypper upgrade -y && zypper install -y git
 ---> Running in 81e84f3be4f0
/bin/sh: zypper: not found
The command '/bin/sh -c zypper update && zypper upgrade -y && zypper install -y git' returned a non-zero code: 127

First I was getting something similar with git not being found. So after a bit of Googling, i found out that I probably need to install git in the docker file.

So I added something like:

FROM maven:3.8.4 AS maven
FROM eclipse-temurin:11-jdk-alpine

RUN mkdir -p $HOME/images/lib/ && cd $HOME/images/lib/

RUN zypper update && zypper upgrade -y && zypper install -y git

#RUN apt-get update && apt-get upgrade -y && apt-get install -y git

RUN git clone MY_GIT_URL

But it errors out on the second line.

My Docker info is:

Client:
 Context:    default
 Debug Mode: false

Server:
 Containers: 9
  Running: 0
  Paused: 0
  Stopped: 9
 Images: 8
 Server Version: 20.10.17-ce
 Storage Driver: btrfs
  Build Version: Btrfs v4.15
  Library Version: 102
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Cgroup Version: 1
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux oci runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 10c12954828e7c7c9b6e0ea9b0c02b01407d3ae1
 runc version: v1.1.4-0-ga916309fff0f
 init version: 
 Security Options:
  apparmor
  seccomp
   Profile: default
 Kernel Version: 5.14.21-150400.24.33-default
 Operating System: openSUSE Leap 15.4
 OSType: linux
 Architecture: x86_64
 CPUs: 1
 Total Memory: 9.714GiB
 Name: localhost.localdomain
 ID: U76D:CEPC:3L3J:ZTTL:C5UQ:TOEZ:DLXA:5NQQ:HOQ7:SHRC:KXBZ:HLJE
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 Username: MY_USERNAME
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false

Answer 1

The container image eclipse-temurin:11-jdk-alpine is based on Alpine Linux, not Suse. Thus, to install operating system packages, use apk instead of zypper . For example:

RUN apk update && apk add git