Updated to support service constraint node.role==worker

FUNDING.md

@@ -0,0 +1,26 @@
+# Acknowledgments
+
+The projects leading to this software have received funding from a series of European Union programmes including:
+
+- the Sixth Framework Programme for Research and Technological Development
+    - [DILIGENT](https://cordis.europa.eu/project/id/004260) (grant no. 004260).
+- the Seventh Framework Programme for research, technological development and demonstration 
+    - [D4Science](https://cordis.europa.eu/project/id/212488) (grant no. 212488);
+    - [D4Science-II](https://cordis.europa.eu/project/id/239019) (grant no.239019);
+    - [ENVRI](https://cordis.europa.eu/project/id/283465) (grant no. 283465);
+    - [iMarine](https://cordis.europa.eu/project/id/283644) (grant no. 283644);
+    - [EUBrazilOpenBio](https://cordis.europa.eu/project/id/288754) (grant no. 288754).
+- the H2020 research and innovation programme 
+    - [SoBigData](https://cordis.europa.eu/project/id/654024) (grant no. 654024);
+    - [PARTHENOS](https://cordis.europa.eu/project/id/654119) (grant no. 654119);
+    - [EGI-Engage](https://cordis.europa.eu/project/id/654142) (grant no. 654142);
+    - [ENVRI PLUS](https://cordis.europa.eu/project/id/654182) (grant no. 654182);
+    - [BlueBRIDGE](https://cordis.europa.eu/project/id/675680) (grant no. 675680);
+    - [PerformFISH](https://cordis.europa.eu/project/id/727610) (grant no. 727610);
+    - [AGINFRA PLUS](https://cordis.europa.eu/project/id/731001) (grant no. 731001);
+    - [DESIRA](https://cordis.europa.eu/project/id/818194) (grant no. 818194);
+    - [ARIADNEplus](https://cordis.europa.eu/project/id/823914) (grant no. 823914);
+    - [RISIS 2](https://cordis.europa.eu/project/id/824091) (grant no. 824091);
+    - [EOSC-Pillar](https://cordis.europa.eu/project/id/857650) (grant no. 857650);
+    - [Blue Cloud](https://cordis.europa.eu/project/id/862409) (grant no. 862409);
+    - [SoBigData-PlusPlus](https://cordis.europa.eu/project/id/871042) (grant no. 871042);

README.md

@@ -15,3 +15,22 @@ python3 dockerimageexecutor.py "microservices-VirtualBox:443/sortapp" sortapp 54
 
 ```
 
+## Authors
+
+* **Giancarlo Panichi** ([ORCID](http://orcid.org/0000-0001-8375-6644)) - [ISTI-CNR Infrascience Group](http://nemis.isti.cnr.it/groups/infrascience)
+
+
+
+## License
+
+This project is licensed under the EUPL V.1.1 License - see the [LICENSE.md](LICENSE.md) file for details.
+
+
+## About the gCube Framework
+This software is part of the [gCubeFramework](https://www.gcube-system.org/ "gCubeFramework"): an
+open-source software toolkit used for building and operating Hybrid Data
+Infrastructures enabling the dynamic deployment of Virtual Research Environments
+by favouring the realisation of reuse oriented policies.
+ 
+The projects leading to this software have received funding from a series of European Union programmes see [FUNDING.md](FUNDING.md)
+

dockerimageexecutor.py

@@ -25,7 +25,7 @@ class DockerImageExecutor:
         self.storageHubUrl = None
         self.softwareImage = sys.argv[1] # Software Image
         self.softwareExecuteCommandName = sys.argv[2] # Command to Run
-        self.fileItemId = sys.argv[3]  # Input Data File
+        self.itemId = sys.argv[3]  # Input Data Item 
         self.tempFolderItemId = None  # '32c0422f-a777-4452-adea-007347ec4484'
         
     def main(self):
@@ -73,14 +73,14 @@ class DockerImageExecutor:
     def executeOnDocker(self):
         print("Execute On Docker")
         dEngine = DockerEngine(self.gcubeToken, self.storageHubUrl,
-                          self.softwareImage, self.softwareExecuteCommandName, self.fileItemId, self.tempFolderItemId)
+                          self.softwareImage, self.softwareExecuteCommandName, self.itemId, self.tempFolderItemId)
         dEngine.execute()
         self.downloadResults()
         
     def executeOnSwarm(self):
         print("Execute On Swarm")
         sEngine = SwarmEngine(self.gcubeToken, self.storageHubUrl,
-                          self.softwareImage, self.softwareExecuteCommandName, self.fileItemId, self.tempFolderItemId)
+                          self.softwareImage, self.softwareExecuteCommandName, self.itemId, self.tempFolderItemId)
         sEngine.execute()
         self.downloadResults()    
         

engine/dockerengine.py

@@ -12,7 +12,7 @@ import gzip
 
 class DockerEngine:     
 
-    def __init__(self, gcubeToken, storageHubUrl, softwareImage, softwareExecuteCommandName, fileItemId, tempFolderItemId): 
+    def __init__(self, gcubeToken, storageHubUrl, softwareImage, softwareExecuteCommandName, itemId, tempFolderItemId): 
         self.gcubeToken = gcubeToken
         self.storageHubUrl = storageHubUrl
         
@@ -21,8 +21,8 @@ class DockerEngine:
         # Software Execute Command Name for example: "sortapp"
         self.softwareExecuteCommandName = softwareExecuteCommandName
        
-        # Input Data File
+        # Input Data Item
-        self.fileItemId = fileItemId
+        self.itemId = itemId
         self.tempFolderItemId = tempFolderItemId
         self.dockerImageArchive = "sortapp-img.tar.gz"
         
@@ -52,7 +52,7 @@ class DockerEngine:
         print(*imagesList, sep="\n") 
         
         print("Create Container")
-        cmdValue = "{} {} {} {}".format(self.softwareExecuteCommandName, self.gcubeToken, self.fileItemId, self.tempFolderItemId)
+        cmdValue = "{} {} {} {}".format(self.softwareExecuteCommandName, self.gcubeToken, self.itemId, self.tempFolderItemId)
         print("CommandValue: " + cmdValue)
         hostConf = client.api.create_host_config(auto_remove=True);
         container = client.api.create_container(
@@ -69,5 +69,5 @@ class DockerEngine:
         return ('DEngine[storageHubUrl=' + str(self.storageHubUrl) + 
                 ', softwareImage=' + str(self.softwareImage) + 
                 ', softwareExecuteCommandName=' + str(self.softwareExecuteCommandName) + 
-                ', fileItemId=' + str(self.fileItemId) + 
+                ', itemId=' + str(self.itemId) + 
                 ', tempFolderItemId=' + str(self.tempFolderItemId) + ']')

engine/swarmengine.py

@@ -13,7 +13,7 @@ from docker.types.services import RestartPolicy
 
 class SwarmEngine:     
 
-    def __init__(self, gcubeToken, storageHubUrl, softwareImage, softwareExecuteCommandName, fileItemId, tempFolderItemId): 
+    def __init__(self, gcubeToken, storageHubUrl, softwareImage, softwareExecuteCommandName, itemId, tempFolderItemId): 
         self.gcubeToken = gcubeToken
         self.storageHubUrl = storageHubUrl
         
@@ -22,8 +22,8 @@ class SwarmEngine:
         # Software Execute Command Name for example: "sortapp"
         self.softwareExecuteCommandName = softwareExecuteCommandName
         
-        # Input Data File
+        # Input Data Item
-        self.fileItemId = fileItemId
+        self.itemId = itemId
         self.tempFolderItemId = tempFolderItemId
         
         # Client Base URL
@@ -90,12 +90,17 @@ class SwarmEngine:
 
         print("Services: " + str(client.services.list()))
 
-        cmdValue = "{} {} {} {}".format(self.softwareExecuteCommandName, self.gcubeToken, self.fileItemId, self.tempFolderItemId)
+        cmdValue = "{} {} {} {}".format(self.softwareExecuteCommandName, self.gcubeToken, self.itemId, self.tempFolderItemId)
         print("CommandValue: " + cmdValue)
-
+        
+        constraintsList=["node.role==worker"]
+        print("Contraints: ") 
+        print(*constraintsList, sep = "\n") 
+        
+        
         print("Create Service")
 
-        srv = client.services.create(self.softwareImage, command=cmdValue,
+        srv = client.services.create(self.softwareImage, command=cmdValue, constraints=constraintsList,
                 restart_policy=RestartPolicy(condition='none', delay=0, max_attempts=0, window=0))
 
         print("Service: " + str(srv))
@@ -112,6 +117,6 @@ class SwarmEngine:
         return ('SwarmRegistryEngine[storageHubUrl=' + str(self.storageHubUrl) + 
                 ', softwareImage=' + str(self.softwareImage) + 
                 ', softwareExecuteCommandName=' + str(self.softwareExecuteCommandName) + 
-                ', fileItemId=' + str(self.fileItemId) + 
+                ', itemId=' + str(self.itemId) + 
                 ', tempFolderItemId=' + str(self.tempFolderItemId) + ']')