Use docker.io gramine base

Author: james-toussaint

Jenkinsfile

@@ -1,33 +1,33 @@
 @Library('global-jenkins-library@2.3.1') _
 
 buildInfo = getBuildInfo()
+dockerIoVisibility = Registries.EXTERNAL_DOCKERIO_HOST
 
 baseDir = 'offchain-computing'
 def nativeImage = buildSimpleDocker_v3(
         buildInfo: buildInfo,
         dockerfileDir: baseDir,
         buildContext: baseDir,
         dockerImageRepositoryName: 'offchain-python-hello-world',
-        visibility: 'docker.io'
+        visibility: dockerIoVisibility
 )
 
 stage('Build Gramine') {
     gramineBuildInfo = buildInfo.clone()
     dockerfileDir = baseDir + '/gramine'
     dockerImageRepositoryName = 'tee-offchain-python-hello-world'
     gramineBuildInfo.imageTag += '-gramine'
-    visibility = 'iex.ec'
     productionImageName = ''
     stage('Build Gramine production image') {
         productionImageName = buildSimpleDocker_v3(
             buildInfo: gramineBuildInfo,
             dockerfileDir: dockerfileDir,
             buildContext: baseDir,
             dockerImageRepositoryName: dockerImageRepositoryName,
-            visibility: visibility
+            visibility: dockerIoVisibility
         )
     }
-    stage('Build Gramine test CA Gramine image') {
+    stage('Build Gramine test CA image') {
         testCaSuffix = 'test-ca'
         gramineBuildInfo.imageTag += '-' + testCaSuffix
         buildSimpleDocker_v3(
@@ -36,7 +36,7 @@ stage('Build Gramine') {
             dockerfileFilename: 'Dockerfile.' + testCaSuffix,
             dockerBuildOptions: '--build-arg BASE_IMAGE=' + productionImageName,
             dockerImageRepositoryName: dockerImageRepositoryName,
-            visibility: visibility
+            visibility: Registries.EXTERNAL_IEXEC_HOST
         )
     }
 }

offchain-computing/gramine/Dockerfile

@@ -1,4 +1,4 @@
-FROM docker-regis.iex.ec/iexec-gramine-base:0.9.0
+FROM iexechub/iexec-gramine-base:0.10.0
 
 RUN apt-get update \
     && apt install -y python3 apktool gcc musl-dev \