Use docker.io prefix for images on Docker hub

Docker assumes docker.io by default, but there are other container
runtimes (for example Podman) where this should be explicit. It is
better to use fully-qualified image names to support other runtime
environments in the future.

Dockerfile

@@ -1,7 +1,7 @@
 # This image will be published as dspace/dspace-angular
 # See https://github.com/DSpace/dspace-angular/tree/main/docker for usage details
 
-FROM node:14-alpine
+FROM docker.io/node:14-alpine
 WORKDIR /app
 ADD . /app/
 EXPOSE 4000

docker/cli.yml

@@ -16,7 +16,7 @@ version: "3.7"
 
 services:
   dspace-cli:
-    image: "${DOCKER_OWNER:-dspace}/dspace-cli:${DSPACE_VER:-dspace-7_x}"
+    image: docker.io/"${DOCKER_OWNER:-dspace}/dspace-cli:${DSPACE_VER:-dspace-7_x}"
     container_name: dspace-cli
     environment:
       # Below syntax may look odd, but it is how to override dspace.cfg settings via env variables.

docker/db.entities.yml

@@ -16,7 +16,7 @@ version: "3.7"
 
 services:
   dspacedb:
-    image: dspace/dspace-postgres-pgcrypto:loadsql
+    image: docker.io/dspace/dspace-postgres-pgcrypto:loadsql
     environment:
       # This LOADSQL should be kept in sync with the URL in DSpace/DSpace
       # This SQL is available from https://github.com/DSpace-Labs/AIP-Files/releases/tag/demo-entities-data

docker/docker-compose-ci.yml

@@ -32,7 +32,7 @@ services:
       solr__P__server: http://dspacesolr:8983/solr
     depends_on:
     - dspacedb
-    image: dspace/dspace:dspace-7_x-test
+    image: docker.io/dspace/dspace:dspace-7_x-test
     networks:
       dspacenet:
     ports:
@@ -65,7 +65,7 @@ services:
       # This SQL is available from https://github.com/DSpace-Labs/AIP-Files/releases/tag/demo-entities-data
       LOADSQL: https://github.com/DSpace-Labs/AIP-Files/releases/download/demo-entities-data/dspace7-entities-data.sql
       PGDATA: /pgdata
-    image: dspace/dspace-postgres-pgcrypto:loadsql
+    image: docker.io/dspace/dspace-postgres-pgcrypto:loadsql
     networks:
       dspacenet:
     stdin_open: true
@@ -76,7 +76,7 @@ services:
   dspacesolr:
     container_name: dspacesolr
     # Uses official Solr image at https://hub.docker.com/_/solr/
-    image: solr:8.11-slim
+    image: docker.io/solr:8.11-slim
     # Needs main 'dspace' container to start first to guarantee access to solr_configs
     depends_on:
     - dspace

docker/docker-compose-rest.yml

@@ -39,7 +39,7 @@ services:
       # proxies.trusted.ipranges: This setting is required for a REST API running in Docker to trust requests 
       # from the host machine. This IP range MUST correspond to the 'dspacenet' subnet defined above.
       proxies__P__trusted__P__ipranges: '172.23.0'
-    image: dspace/dspace:dspace-7_x-test
+    image: docker.io/dspace/dspace:dspace-7_x-test
     depends_on:
     - dspacedb
     networks:
@@ -69,7 +69,7 @@ services:
     container_name: dspacedb
     environment:
       PGDATA: /pgdata
-    image: dspace/dspace-postgres-pgcrypto
+    image: docker.io/dspace/dspace-postgres-pgcrypto
     networks:
       dspacenet:
     ports:
@@ -83,7 +83,7 @@ services:
   dspacesolr:
     container_name: dspacesolr
     # Uses official Solr image at https://hub.docker.com/_/solr/
-    image: solr:8.11-slim
+    image: docker.io/solr:8.11-slim
     # Needs main 'dspace' container to start first to guarantee access to solr_configs
     depends_on:
     - dspace

docker/docker-compose.yml

@@ -24,7 +24,7 @@ services:
       DSPACE_REST_HOST: localhost
       DSPACE_REST_PORT: 8080
       DSPACE_REST_NAMESPACE: /server
-    image: dspace/dspace-angular:dspace-7_x
+    image: docker.io/dspace/dspace-angular:dspace-7_x
     build:
       context: ..
       dockerfile: Dockerfile