diff --git a/IM/connectors/EC2.py b/IM/connectors/EC2.py
index fe32bea9d..0317635e2 100644
--- a/IM/connectors/EC2.py
+++ b/IM/connectors/EC2.py
@@ -1580,7 +1580,7 @@ def get_all_instance_types(self, retries=3, delay=5):
         else:
             for instance_type in data:
                 price = 50
-                if instance_type['pricing']:
+                if instance_type['pricing'] and 'us-east-1' in instance_type['pricing']:
                     price = float(instance_type['pricing']['us-east-1']['linux']['ondemand'])
                 disks = 0
                 disk_space = 0
diff --git a/IM/connectors/OCCI.py b/IM/connectors/OCCI.py
index 72eb58926..f5438b806 100644
--- a/IM/connectors/OCCI.py
+++ b/IM/connectors/OCCI.py
@@ -181,12 +181,12 @@ def get_attached_volumes_from_info(occi_res):
         # kvm_file0";occi.core.target="/storage/0";occi.core.source="/compute/10";occi.storagelink.deviceid="/dev/hda";occi.storagelink.state="active"
         lines = occi_res.split("\n")
         res = []
-        for l in lines:
-            if 'Link:' in l and '/storage/' in l:
+        for line in lines:
+            if 'Link:' in line and '/storage/' in line:
                 num_link = None
                 num_storage = None
                 device = None
-                parts = l.split(';')
+                parts = line.split(';')
                 for part in parts:
                     kv = part.split('=')
                     if kv[0].strip() == "self":
@@ -214,11 +214,11 @@ def get_net_info(occi_res):
         num_interface = None
         ip_address = None
         link = None
-        for l in lines:
-            if 'Link:' in l and '/network/public' in l:
+        for line in lines:
+            if 'Link:' in line and '/network/public' in line:
                 link_to_public = True
-            if 'Link:' in l and ('/network/' in l or '/networklink/' in l):
-                parts = l.split(';')
+            if 'Link:' in line and ('/network/' in line or '/networklink/' in line):
+                parts = line.split(';')
                 for part in parts:
                     kv = part.split('=')
                     if kv[0].strip() == "occi.networkinterface.address":
@@ -286,9 +286,9 @@ def get_property_from_category(occi_res, category, prop_name):
         Get a property of an OCCI category returned by an OCCI server
         """
         lines = occi_res.split("\n")
-        for l in lines:
-            if l.find('Category: ' + category + ';') != -1:
-                for elem in l.split(';'):
+        for line in lines:
+            if line.find('Category: ' + category + ';') != -1:
+                for elem in line.split(';'):
                     kv = elem.split('=')
                     if len(kv) == 2:
                         key = kv[0].strip()
@@ -304,8 +304,8 @@ def get_floating_pool(occi_data):
         """
         lines = occi_data.split("\n")
         pools = []
-        for l in lines:
-            if 'http://schemas.openstack.org/network/floatingippool#' in l:
+        for line in lines:
+            if 'http://schemas.openstack.org/network/floatingippool#' in line:
                 for elem in l.split(';'):
                     if elem.startswith('Category: '):
                         pools.append(elem[10:])
@@ -337,10 +337,10 @@ def get_net_name(self, auth_data, auth_header, is_public):
             return os.path.basename(lines[0][17:])
 
         # if not, try to find one with a public ip
-        for l in lines:
-            if l.startswith("X-OCCI-Location: "):
-                net_url = l[17:]
-                net_name = os.path.basename(l[17:])
+        for line in lines:
+            if line.startswith("X-OCCI-Location: "):
+                net_url = line[17:]
+                net_name = os.path.basename(line[17:])
                 resp = self.create_request('GET', net_url, auth_data, headers)
                 if resp.status_code == 200:
                     net_addr = self.get_occi_attribute_value(resp.text, "occi.network.address")
@@ -351,9 +351,9 @@ def get_net_name(self, auth_data, auth_header, is_public):
                             return net_name
 
         # if not, try to find one with the expected names
-        for l in lines:
-            if l.startswith("X-OCCI-Location: "):
-                net_name = os.path.basename(l[17:])
+        for line in lines:
+            if line.startswith("X-OCCI-Location: "):
+                net_name = os.path.basename(line[17:])
             if is_public:
                 if net_name.startswith(tuple(self.PUBLIC_NET_NAMES)):
                     return net_name
@@ -414,9 +414,9 @@ def get_occi_attribute_value(occi_res, attr_name):
         Get the value of an OCCI attribute returned by an OCCI server
         """
         lines = occi_res.split("\n")
-        for l in lines:
-            if l.find('X-OCCI-Attribute: ' + attr_name + '=') != -1:
-                return l.split('=')[1].strip('"')
+        for line in lines:
+            if line.find('X-OCCI-Attribute: ' + attr_name + '=') != -1:
+                return line.split('=')[1].strip('"')
         return None
 
     def updateVMInfo(self, vm, auth_data):
@@ -510,9 +510,9 @@ def get_scheme(self, occi_info, category, ctype):
         Get the scheme of an OCCI category contacting with the OCCI server
         """
         lines = occi_info.split("\n")
-        for l in lines:
-            if l.find('Category: ' + category) != -1 and l.find(ctype) != -1:
-                parts = l.split(';')
+        for line in lines:
+            if line.find('Category: ' + category) != -1 and line.find(ctype) != -1:
+                parts = line.split(';')
                 for p in parts:
                     kv = p.split("=")
                     if kv[0].strip() == "scheme":
diff --git a/README.md b/README.md
index 698b1ca63..46f60d3ac 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ Miguel Caballer, Ignacio Blanquer, German Molto, and Carlos de Alfonso. "[Dynami
 
 The recommended option to use the Infrastructure Manager service is using the available docker image.
 A Docker image named `grycap/im` has been created to make easier the deployment of an IM service using the 
-default configuration. Information about this image can be found here: https://registry.hub.docker.com/u/grycap/im/.
+default configuration. Information about this image can be found here: https://hub.docker.com/r/grycap/im/.
 
 How to launch the IM service using docker::
 
@@ -63,9 +63,23 @@ The IM service and web interface can be installed on top of [Kubernetes](https:/
 
 How to install the IM chart:
 
+First add the GRyCAP repo:
+
+```sh
+helm repo add grycap https://grycap.github.io/helm-charts/
+```
+
+Then install the IM chart (with Helm v2):
+
+```sh
+helm install --namespace=im --name=im  grycap/IM
+```
+
+Then install the IM chart (with Helm v3):
+
 ```sh
-$ helm repo add grycap https://grycap.github.io/helm-charts/
-$ helm install --namespace=im --name=im  grycap/IM
+kubectl create namespace im
+helm install --namespace=im im  grycap/IM
 ```
 
 All the information about this chart is available at the [IM chart README](https://github.com/grycap/helm-charts/blob/master/IM/README.md).
diff --git a/doc/source/client.rst b/doc/source/client.rst
index b57e5b64f..fca142eda 100644
--- a/doc/source/client.rst
+++ b/doc/source/client.rst
@@ -48,7 +48,7 @@ user can specify the following parameters::
 	[im_client]
 	# only set one of the urls
 	#xmlrpc_url=http://localhost:8899
-	restapi_url==http://localhost:8800
+	restapi_url=http://localhost:8800
 	auth_file=auth.dat
 	xmlrpc_ssl_ca_certs=/tmp/pki/ca-chain.pem
 
diff --git a/doc/source/gstarted.rst b/doc/source/gstarted.rst
index cb9eadb56..646236235 100644
--- a/doc/source/gstarted.rst
+++ b/doc/source/gstarted.rst
@@ -29,6 +29,8 @@ To access the IM service two client tools can be used (apart from the two APIs):
 
     $ sudo docker run -d -p 80:80 --name im-web --link im:im grycap/im-web
 
+  Then you can access the im-web interface using the following url: `http://localhost/im-web`.
+  
   See full manual in IM Web :ref:`use-web`.
 
 In this first examples we will use the IM-client tool to create, manage and finally destroy a single VM.
diff --git a/requirements-tests.txt b/requirements-tests.txt
new file mode 100644
index 000000000..9a18f93be
--- /dev/null
+++ b/requirements-tests.txt
@@ -0,0 +1,29 @@
+ansible >= 2.4
+paramiko >= 1.14
+PyYAML
+cheroot
+boto >= 2.29
+apache-libcloud >= 2.6.0
+RADL >= 1.1.2
+bottle
+netaddr
+requests >= 2.19
+scp
+tosca-parser
+defusedxml
+urllib3>=1.23
+pycodestyle
+suds-py3
+xmltodict
+mysqlclient
+pywinrm
+pymongo
+msrest
+msrestazure
+azure-common
+azure-mgmt-storage
+azure-mgmt-compute
+azure-mgmt-network
+azure-mgmt-resource
+azure-mgmt-dns
+pyVmomi
\ No newline at end of file
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 000000000..285c7e6f5
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,22 @@
+[tox]
+envlist = py3,style,coverage
+skipsdist = true
+
+[testenv]
+deps = nose
+       mock
+      -r{toxinidir}/requirements-tests.txt
+basepython =
+    {py3,style,coverage}: python3
+whitelist_externals = bash
+commands = bash -c "nosetests -v test/unit/*.py test/unit/connectors/*.py"
+
+[testenv:style]
+deps = pycodestyle
+commands = pycodestyle --max-line-length=120 --ignore=E402,W504,W605 IM --exclude=doc
+           pycodestyle --max-line-length=120 --ignore=E402,W504,W605 contextualization --exclude=doc
+
+[testenv:coverage]
+commands = bash -c "nosetests -v test/unit/*.py test/unit/connectors/*.py -v --stop --with-xunit --with-coverage --cover-erase --cover-xml --cover-package=IM,contextualization"
+
+