Add fedora 37 and Rocky Linux 9 (+ dnf update)

README.md

@@ -25,12 +25,19 @@ If you need to do any complicated setup in the environment before running `fpm`
   * `cdrx/fpm-fedora:22`
   * `cdrx/fpm-fedora:21`
   * `cdrx/fpm-fedora:20`
+  * `cdrx/fpm-fedora:37`
 
 * CentOS w/ fpm
   * `cdrx/fpm-centos:7`
   * `cdrx/fpm-centos:6`
   * `cdrx/fpm-centos:5`
 
+* Rocky Linux w/ fpm
+  * `cdrx/fpm-rockylinux:9`
+
+* Alpine w/ fpm
+  * `cdrx/fpm-alpine:3.17.1`
+
 The `:latest` tag will always point to the most recent release of the distro.
 
 ## Usage

alpine/3.17.1/Dockerfile

@@ -0,0 +1,10 @@
+FROM alpine:3.17.1
+
+RUN set -x \
+    && apk add --update --no-cache ruby-dev gcc make \
+    && gem install fpm \
+    && mkdir /src
+
+WORKDIR /src/
+
+CMD /usr/local/bin/fpm

fedora/37/Dockerfile

@@ -0,0 +1,12 @@
+FROM fedora:37
+
+RUN set -x \
+    && dnf update -y \
+    && dnf install -y ruby-devel gcc make rpmdevtools \
+    && gem install fpm \
+    && dnf clean all \
+    && mkdir /src
+
+WORKDIR /src/
+
+CMD /usr/local/bin/fpm

rockylinux/9/Dockerfile

@@ -0,0 +1,12 @@
+FROM rockylinux:9
+
+RUN set -x \
+    && dnf update -y \
+    && dnf install -y ruby-devel rubygems gcc make rpmdevtools \
+    && gem install fpm \
+    && dnf clean all \
+    && mkdir /src
+
+WORKDIR /src/
+
+CMD /usr/local/bin/fpm