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From lmc...@apache.org
Subject [2/4] Changes to the LICENSE, NOTICE and similar files layout and build to address release vote issues from 0.3.1
Date Fri, 06 Dec 2013 20:59:22 GMT
http://git-wip-us.apache.org/repos/asf/incubator-knox/blob/477f70a5/hsso-release/home/INSTALL
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diff --git a/hsso-release/home/INSTALL b/hsso-release/home/INSTALL
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-------------------------------------------------------------------------------
-Requirements
-------------------------------------------------------------------------------
-Java:
-  Java 1.6 or later
-
-Hadoop Cluster:
-  A local installation of a Hadoop Cluster is required at this time.  Hadoop
-  EC2 cluster and/or Sandbox installations are currently difficult to access
-  remotely via the Gateway. The EC2 and Sandbox limitation is caused by
-  Hadoop services running with internal IP addresses.  For the Gateway to work
-  in these cases it will need to be deployed on the EC2 cluster or Sandbox, at
-  this time.
-
-  The instructions that follow assume that the Gateway is *not* collocated
-  with the Hadoop clusters themselves and (most importantly) that the
-  hostnames and IP addresses of the cluster services are accessible by the
-  gateway where ever it happens to be running.
-
-  The Hadoop cluster should be ensured to have WebHDFS, WebHCat
-  (i.e. Templeton) and Oozie configured, deployed and running.
-
-------------------------------------------------------------------------------
-Installation and Deployment Instructions
-------------------------------------------------------------------------------
-1. Install
-     Download and extract the knox-{VERSION}.zip file into the
-     installation directory that will contain your GATEWAY_HOME
-       jar xf knox-{VERSION}.zip
-     This will create a directory 'gateway' in your current directory.
-
-2. Enter Gateway Home directory
-     cd gateway
-   The fully qualified name of this directory will be referenced as
-   {GATEWAY_HOME} throughout the remainder of this document.
-
-3. Start the demo LDAP server (ApacheDS)
-   a. First, understand that the LDAP server provided here is for demonstration
-      purposes. You may configure the LDAP specifics within the topology
-      descriptor for the cluster as described in step 5 below, in order to
-      customize what LDAP instance to use. The assumption is that most users
-      will leverage the demo LDAP server while evaluating this release and
-      should therefore continue with the instructions here in step 3.
-   b. Edit {GATEWAY_HOME}/conf/users.ldif if required and add your users and
-      groups to the file.  A number of normal Hadoop users
-      (e.g. hdfs, mapred, hcat, hive) have already been included.  Note that
-      the passwords in this file are "fictitious" and have nothing to do with
-      the actual accounts on the Hadoop cluster you are using.  There is also
-      a copy of this file in the templates directory that you can use to start
-      over if necessary.
-   c. Start the LDAP server - pointing it to the config dir where it will find
-      the users.ldif file in the conf directory.
-        java -jar bin/ldap.jar conf &
-      There are a number of log messages of the form "Created null." that can
-      safely be ignored.  Take note of the port on which it was started as this
-      needs to match later configuration.  This will create a directory named
-      'org.apache.hadoop.gateway.security.EmbeddedApacheDirectoryServer' that
-      can safely be ignored.
-
-4. Start the Gateway server
-     java -jar bin/server.jar
-   a. Take note of the port identified in the logging output as you will need this for
-      accessing the gateway.
-   b. The server will prompt you for the master secret (password). This secret is used
-      to secure artifacts used to secure artifacts used by the gateway server for
-      things like SSL, credential/password aliasing. This secret will have to be entered
-      at startup unless you choose to persist it. Remember this secret and keep it safe.
-      It represents the keys to the kingdom. See the Persisting the Master section for
-      more information.
-
-5. Configure the Gateway with the topology of your Hadoop cluster
-   a. Edit the file {GATEWAY_HOME}/deployments/sample.xml
-   b. Change the host and port in the urls of the <service> elements for
-      WEBHDFS, WEBHCAT and OOZIE services to match your Hadoop cluster
-      deployment.
-   c. The default configuration contains the LDAP URL for a LDAP server.  By
-      default that file is configured to access the demo ApacheDS based LDAP
-      server and its default configuration. By default, this server listens on
-      port 33389.  Optionally, you can change the LDAP URL for the LDAP server
-      to be used for authentication.  This is set via the
-      main.ldapRealm.contextFactory.url property in the
-      <gateway><provider><authentication> section.
-   d. Save the file.  The directory {GATEWAY_HOME}/deployments is monitored
-      by the Gateway server and reacts to the discovery of a new or changed
-      cluster topology descriptor by provisioning the endpoints and required
-      filter chains to serve the needs of each cluster as described by the
-      topology file.  Note that the name of the file excluding the extension
-      is also used as the path for that cluster in the URL.  So for example
-      the sample.xml file will result in Gateway URLs of the form
-        http://{gateway-host}:{gateway-port}/gateway/sandbox/webhdfs/v1
-
-6. Test the installation and configuration of your Gateway
-   Invoke the LISTSATUS operation on HDFS represented by your configured
-   WEBHDFS by using your web browser or curl:
-
-   curl -i -k -u guest:guest-password -X GET \
-     'https://localhost:8443/gateway/sandbox/webhdfs/v1/?op=LISTSTATUS'
-
-   The results of the above command should result in something to along the
-   lines of the output below.  The exact information returned is subject to
-   the content within HDFS in your Hadoop cluster.
-
-     HTTP/1.1 200 OK
-       Content-Type: application/json
-       Content-Length: 760
-       Server: Jetty(6.1.26)
-
-     {"FileStatuses":{"FileStatus":[
-     {"accessTime":0,"blockSize":0,"group":"hdfs","length":0,"modificationTime":1350595859762,"owner":"hdfs","pathSuffix":"apps","permission":"755","replication":0,"type":"DIRECTORY"},
-     {"accessTime":0,"blockSize":0,"group":"mapred","length":0,"modificationTime":1350595874024,"owner":"mapred","pathSuffix":"mapred","permission":"755","replication":0,"type":"DIRECTORY"},
-     {"accessTime":0,"blockSize":0,"group":"hdfs","length":0,"modificationTime":1350596040075,"owner":"hdfs","pathSuffix":"tmp","permission":"777","replication":0,"type":"DIRECTORY"},
-     {"accessTime":0,"blockSize":0,"group":"hdfs","length":0,"modificationTime":1350595857178,"owner":"hdfs","pathSuffix":"user","permission":"755","replication":0,"type":"DIRECTORY"}
-     ]}}
-
-   For additional information on WebHDFS, WebHCat/Templeton and Oozie
-   REST APIs, see the following URLs respectively:
-
-   http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/WebHDFS.html
-   http://hive.apache.org/docs/hcat_r0.5.0/rest.html
-   http://oozie.apache.org/docs/4.0.0/WebServicesAPI.html
-
-------------------------------------------------------------------------------
-Persisting the Master
-------------------------------------------------------------------------------
-The master secret is required to start the server. This secret is used to access secured
artifacts by the gateway
-instance. Keystore, trust stores and credential stores are all protected with the master
secret.
-
-You may persist the master secret by supplying the *-persist-master* switch at startup. This
will result in a
-warning indicating that persisting the secret is less secure than providing it at startup.
We do make some provisions in
-order to protect the persisted password.
-
-It is encrypted with AES 128 bit encryption and where possible the file permissions are set
to only be accessible by
-the user that the gateway is running as.
-
-After persisting the secret, ensure that the file at config/security/master has the appropriate
permissions set for your
-environment. This is probably the most important layer of defense for master secret. Do not
assume that the encryption if
-sufficient protection.
-
-A specific user should be created to run the gateway this will protect a persisted master
file.
-
-------------------------------------------------------------------------------
-Management of Security Artifacts
-------------------------------------------------------------------------------
-There are a number of artifacts that are used by the gateway in ensuring the security of
wire level communications,
-access to protected resources and the encryption of sensitive data. These artifacts can be
managed from outside of
-the gateway instances or generated and populated by the gateway instance itself.
-
-The following is a description of how this is coordinated with both standalone (development,
demo, etc) gateway
-instances and instances as part of a cluster of gateways in mind.
-
-Upon start of the gateway server we:
-
-1. Look for an identity store at conf/security/keystores/gateway.jks. The identity store
contains the certificate
-   and private key used to represent the identity of the server for SSL connections and signtature
creation.
-	a. If there is no identity store we create one and generate a self-signed certificate for
use in standalone/demo
-   	   mode. The certificate is stored with an alias of gateway-identity.
-   	b. If there is an identity store found than we ensure that it can be loaded using the
provided master secret and
-   	   that there is an alias with called gateway-identity.
-2. Look for a credential store at conf/security/keystores/__gateway-credentials.jceks. This
credential store is used
-   to store secrets/passwords that are used by the gateway. For instance, this is where the
passphrase for accessing
-   the gateway-identity certificate is kept.
-   a. If there is no credential store found then we create one and populate it with a generated
passphrase for the alias
-      gateway-identity-passphrase. This is coordinated with the population of the self-signed
cert into the identity-store.
-   b. If a credential store is found then we ensure that it can be loaded using the provided
master secret and that the
-      expected aliases have been populated with secrets.
-
-Upon deployment of a Hadoop cluster topology within the gateway we:
-
-1. Look for a credential store for the topology. For instance, we have a sample topology
that gets deployed out of the box.
-   We look for conf/security/keystores/sample-credentials.jceks. This topology specific credential
store is used for storing
-   secrets/passwords that are used for encrypting sensitive data with topology specific keys.
-   a. If no credential store is found for the topology being deployed then one is created
for it. Population of the aliases
-      is delegated to the configured providers within the system that will require the use
of a secret for a particular
-      task. They may programmatically set the value of the secret or choose to have the value
for the specified alias
-      generated through the AliasService..
-   b. If a credential store is found then we ensure that it can be loaded with the provided
master secret and the confgured
-      providers have the opportunity to ensure that the aliases are populated and if not
to populate them.
-
- By leveraging the algorithm described above we can provide a window of opportunity for management
of these artifacts in a
- number of ways.
-
- 1. Using a single gateway instance as a master instance the artifacts can be generated or
placed into the expected location
-    and then replicated across all of the slave instances before startup.
- 2. Using an NFS mount as a central location for the artifacts would provide a single source
of truth without the need to
-    replicate them over the network. Of course, NFS mounts have their own challenges.
-
-Summary of Secrets to be Managed:
-
-1. Master secret - the same for all gateway instances in a cluster of gateways
-2. All security related artifacts are protected with the master secret
-3. Secrets used by the gateway itself are stored within the gateway credential store and
are the same across all gateway
-   instances in the cluster of gateways
-4. Secrets used by providers within cluster topologies are stored in topology specific credential
stores and are the same
-   for the same topology across the cluster of gateway instances. However, they are specific
to the topology - so secrets
-   for one hadoop cluster are different from those of another. This allows for failover from
one gateway instance to another
-   even when encryption is being used while not allowing the compromise of one encryption
key to expose the data for all clusters.
-
-NOTE: the SSL certificate will need special consideration depending on the type of certificate.
Wildcard certs may be able
-to be shared across all gateway instances in a cluster. When certs are dedicated to specific
machines the gateway identity
-store will not be able to be blindly replicated as hostname verification problems will ensue.
Obviously, truststores will
-need to be taken into account as well.
-
-------------------------------------------------------------------------------
-Mapping Gateway URLs to Hadoop cluster URLs
-------------------------------------------------------------------------------
-The Gateway functions much like a reverse proxy.  As such it maintains a
-mapping of URLs that are exposed externally by the Gateway to URLs that are
-provided by the Hadoop cluster.  Examples of mappings for the WebHDFS and
-WebHCat are shown below.  These mapping are generated from the combination
-of the Gateway configuration file (i.e. {GATEWAY_HOME}/gateway-site.xml)
-and the cluster topology descriptors
-(e.g. {GATEWAY_HOME}/deployments/<cluster-name>.xml).
-
-  WebHDFS
-    Gateway: http://<gateway-host>:<gateway-port>/<gateway-path>/<cluster-name>/webhdfs
-    Cluster: http://<webhdfs-host>:50070/webhdfs
-  WebHCat (Templeton)
-    Gateway: http://<gateway-host>:<gateway-port>/<gateway-path>/<cluster-name>/webhcat
-    Cluster: http://<webhcat-host>:50111/templeton
-  Oozie
-    Gateway: http://<gateway-host>:<gateway-port>/<gateway-path>/<cluster-name>/oozie
-    Cluster: http://<oozie-host>:11000/oozie
-
-The values for <gateway-host>, <gateway-port>, <gateway-path> are provided
via
-the Gateway configuration file (i.e. {GATEWAY_HOME}/gateway-site.xml).
-
-The value for <cluster-name> is derived from the name of the cluster topology
-descriptor (e.g. {GATEWAY_HOME}/deployments/<cluster-name>.xml).
-
-The value for <webhdfs-host> and <webhcat-host> is provided via the cluster
-topology descriptor (e.g. {GATEWAY_HOME}/deployments/<cluster-name>.xml).
-
-Note: The ports 50070, 50111 and 11000 are the defaults for WebHDFS,
-      WebHCat and Oozie respectively. Their values can also be provided via
-      the cluster topology descriptor if your Hadoop cluster uses different
-      ports.
-
-------------------------------------------------------------------------------
-Usage Examples
-------------------------------------------------------------------------------
-Please see the Apache Knox Gateway website for detailed examples.
-http://knox.incubator.apache.org/examples.html
-
-------------------------------------------------------------------------------
-Enabling logging
-------------------------------------------------------------------------------
-If necessary you can enable additional logging by editing the log4j.properties
-file in the conf directory.  Changing the rootLogger value from ERROR to DEBUG
-will generate a large amount of debug logging.  A number of useful, more fine
-loggers are also provided in the file.
-

http://git-wip-us.apache.org/repos/asf/incubator-knox/blob/477f70a5/hsso-release/home/ISSUES
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diff --git a/hsso-release/home/ISSUES b/hsso-release/home/ISSUES
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-------------------------------------------------------------------------------
-Know Issues
-------------------------------------------------------------------------------
-The Gateway cannot be be used against either EC2 cluster unless the gateway
-is deployed within the EC2.
-
-If the cluster deployment descriptors in {GATEWAY_HOME}/deployments are
-incorrect, the errors logged by the gateway are overly detailed and not
-diagnostic enough.
-


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