Update the README.md in the root

Dockerfile

@@ -1,4 +1,4 @@
-FROM registry.fedoraproject.org/f31/s2i-core:latest
+FROM registry.fedoraproject.org/f30/s2i-core:latest
 
 # Redis image based on Software Collections packages
 #
@@ -9,7 +9,6 @@ FROM registry.fedoraproject.org/f31/s2i-core:latest
 
 ENV NAME=redis \
     VERSION=5 \
-    RELEASE=1 \
     ARCH=x86_64
 
 ENV REDIS_VERSION=$VERSION \
@@ -33,8 +32,6 @@ LABEL summary="$SUMMARY" \
       com.redhat.component="$NAME" \
       name="$FGC/$NAME" \
       version="$VERSION" \
-      release="$RELEASE.$DISTTAG" \
-      architecture="$ARCH" \
       usage="docker run -d --name redis_database -p 6379:6379 $FGC/$NAME" \
       maintainer="SoftwareCollections.org <sclorg@redhat.com>"
 

README.md

@@ -1,40 +1,36 @@
-Redis Docker image
+Redis 5 in-memory data structure store container image
 ====================
 
-This container image includes Dockerfile for Redis 3.2 Docker image.
-Users can choose between RHEL and CentOS based images.
+This container image includes Redis 5 in-memory data structure store for OpenShift and general usage.
+Users can choose between RHEL, CentOS and Fedora based images.
+The RHEL images are available in the [Red Hat Container Catalog](https://access.redhat.com/containers/),
+the CentOS images are available on [Docker Hub](https://hub.docker.com/r/centos/),
+and the Fedora images are available in [Fedora Registry](https://registry.fedoraproject.org/).
+The resulting image can be run using [podman](https://github.com/containers/libpod).
 
-Dockerfile for CentOS is called Dockerfile, Dockerfile for RHEL is called
-Dockerfile.rhel7.
+Note: while the examples in this README are calling `podman`, you can replace any such calls by `docker` with the same arguments
 
-Environment variables and volumes
-----------------------------------
+Description
+-----------
 
-|    Variable name       |    Description                            |
-| :--------------------- | ----------------------------------------- |
-|  `REDIS_PASSWORD`      | Password for the server access            |
+Redis 5 available as container, is an advanced key-value store.
+It is often referred to as a data structure server since keys can contain strings, hashes, lists,
+sets and sorted sets. You can run atomic operations on these types, like appending to a string;
+incrementing the value in a hash; pushing to a list; computing set intersection, union and difference;
+or getting the member with highest ranking in a sorted set. In order to achieve its outstanding
+performance, Redis works with an in-memory dataset. Depending on your use case, you can persist
+it either by dumping the dataset to disk every once in a while, or by appending each command to a log.
 
-TBD
-
-You can also set the following mount points by passing the `-v /host:/container:Z` flag to Docker.
-
-|  Volume mount point      | Description          |
-| :----------------------- | -------------------- |
-|  `/var/lib/redis/data`   | Redis data directory |
-
-**Notice: When mouting a directory from the host into the container, ensure that the mounted
-directory has the appropriate permissions and that the owner and group of the directory
-matches the user UID or name which is running inside the container.**
 
 Usage
----------------------------------
+-----
 
-For this, we will assume that you are using the `rhscl/redis-32-rhel7` image.
+For this, we will assume that you are using the `rhel8/redis-5` image.
 If you want to set only the mandatory environment variables and not store
 the database in a host directory, execute the following command:
 
 ```
-$ docker run -d --name redis_database -p 6379:6379 rhscl/redis-32-rhel7
+$ podman run -d --name redis_database -p 6379:6379 rhel8/redis-5
 ```
 
 This will create a container named `redis_database`. Port 6379 will be exposed and mapped
@@ -47,9 +43,43 @@ For protecting Redis data by a password, pass `REDIS_PASSWORD` environment varia
 to the container like this:
 
 ```
-$ docker run -d --name redis_database -e REDIS_PASSWORD=strongpassword rhscl/redis-32-rhel7
+$ podman run -d --name redis_database -e REDIS_PASSWORD=strongpassword rhel8/redis-5
 ```
 
 **Warning: since Redis is pretty fast an outside user can try up to
 150k passwords per second against a good box. This means that you should
 use a very strong password otherwise it will be very easy to break.**
+
+
+Environment variables and volumes
+----------------------------------
+
+**`REDIS_PASSWORD`**  
+       Password for the server access
+
+
+You can also set the following mount points by passing the `-v /host:/container:Z` flag to podman.
+
+**`/var/lib/redis/data`**  
+       Redis data directory
+
+
+**Notice: When mouting a directory from the host into the container, ensure that the mounted
+directory has the appropriate permissions and that the owner and group of the directory
+matches the user UID or name which is running inside the container.**
+
+
+Troubleshooting
+---------------
+Redis logs into standard output, so the log is available in the container log. The log can be examined by running:
+
+    podman logs <container>
+
+
+See also
+--------
+Dockerfile and other sources for this container image are available on
+https://github.com/sclorg/redis-container.
+In that repository you also can find another versions of Python environment Dockerfiles.
+Dockerfile for CentOS is called `Dockerfile`, Dockerfile for RHEL7 is called `Dockerfile.rhel7`,
+for RHEL8 it's `Dockerfile.rhel8` and the Fedora Dockerfile is called Dockerfile.fedora.