When we create a vm in the network with redundant VRs, the lease file in the vm (for example /var/lib/dhcp/dhclient.eth0.leases) shows the dhcp-server-identifier is the guest ip (not vip/gateway) of master VR. That's the ip ipaddress where the vm fetch password and metadata from.
if we stop the master VR (then backup will be master) or restart the network with cleanup (VRs will be created), the guest ip of master VR changes so vm are not able to get metadata/ssh-key using the ips in dhcp lease file.
Setting up metadata/password/dhcp server on gateway instead of guest IP in redundant VRs will fix the issues.
FIxes#3409
This fixes to avoid forking curl to save password but instead call
a HTTP POST url directly within Python code. This may reduce bottleneck
during high VM launches that require passwords.
Fixes#3182
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
The VR code has provision for inserting rules at the top or bottom by specifying "front" as the second parameter to self.fw.append. However, there are a number of cases where someone has been unaware of this and added a rule with the pattern self.fw.append(["mangle", "", "-I PREROUTING".... This causes the code to check for the rule already being present to fail, and duplicate rules end up being added.
This PR fixes two of these cases which apply to adding static NAT rules. I am aware of more of these cases, but I don't have the ability to easily test the outcome of fixing them. I'm happy to add these in if you're confident that the automated tests will be sufficient. Searching for "-I (case sensitive) finds these.
The code for dealing with "front" is included below to show that this shouldn't have any ill effects:
if fw[1] == "front":
cpy = cpy.replace('-A', '-I')
Fixes#3177
This PR resolves 2 issues related to Virtual Routers with multiple public interfaces, and works around a third.
- Fixes#3353 - Adds missing throw routes for eth0/eth1 to eth3+ when there are >1 public IPs
- Fixes#3168 - Incorrect marks set on some static NAT rules (some code references were changed from hex(int(interfacenum)) to hex(100 + int(interfacenum)) - this change just adds the remaining ones
- Fixes#3352 - Work around that sends Gratuitous ARP messages when a HA VR becomes master to work around the problem of the MAC address being different between HA VRs. If that issue is fixed properly (i.e. a database entry for the subsequent interfaces so they can be static) then this is unnecessary, though should not cause any problems.
* systemd: fix services to allow TLS configurations via java.security.ciphers
This fixes the management server and systemd services to allow the
java.security.ciphers file to configure disabled TLS protocols and
algorithms. This also cleans up systemd service files for agent and
usage server.
This fixes#3140
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
* configure: fix travis failure due pycodestyle error
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Using Source NAT option on Private Gateway does not work
This fixes#2680
## Description
<!--- Describe your changes in detail -->
When you use the Source NAT feature of Private Gateways on a VPC. This should Source NAT all traffic from CloudStack VMs going towards IPs reachable through Private Gateways.
This change in this PR, stops adding the Source CIDR to SNAT rules. This should be discussed/reviewed, but i can see no reason why the Source CIDR is needed. There can only be one SNAT IP per interface, except for Static (one-to-one) NATs, which still work with this change in place. The outbound interface is what matters in the rule.
<!-- For new features, provide link to FS, dev ML discussion etc. -->
<!-- In case of bug fix, the expected and actual behaviours, steps to reproduce. -->
##### SUMMARY
<!-- Explain the problem/feature briefly -->
There is a bug in the Private Gateway functionality, when Source NAT is enabled for the Private Gateway. When the SNAT is added to iptables, it has the source CIDR of the private gateway subnet. Since no VMs live in that private gateway subnet, the SNAT doesn’t work.
##### STEPS TO REPRODUCE
<!--
For bugs, show exactly how to reproduce the problem, using a minimal test-case. Use Screenshots if accurate.
For new features, show how the feature would be used.
-->
<!-- Paste example playbooks or commands between quotes below -->
Below is an example:
- VMs have IP addresses in the 10.0.0.0/24 subnet.
- The Private Gateway address is 10.101.141.2/30
In the outputs below, the SOURCE field for the new SNAT (eth3) only matches if the source is 10.101.141.0/30. Since the VM has an IP address in 10.0.0.0/24, the VMs don’t get SNAT’d as they should when talking across the private gateway. The SOURCE should be set to ANYWHERE.
##### BEFORE ADDING PRIVATE GATEWAY
~~~
Chain POSTROUTING (policy ACCEPT 1 packets, 52 bytes)
pkts bytes target prot opt in out source destination
2 736 SNAT all -- any eth2 10.0.0.0/24 anywhere to:10.0.0.1
16 1039 SNAT all -- any eth1 anywhere anywhere to:46.99.52.18
~~~
<!-- You can also paste gist.github.com links for larger files -->
##### EXPECTED RESULTS
<!-- What did you expect to happen when running the steps above? -->
~~~
Chain POSTROUTING (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
0 0 SNAT all -- any eth3 anywhere anywhere to:10.101.141.2
2 736 SNAT all -- any eth2 anywhere anywhere to:10.0.0.1
23 1515 SNAT all -- any eth1 anywhere anywhere to:46.99.52.18
~~~
##### ACTUAL RESULTS
<!-- What actually happened? -->
<!-- Paste verbatim command output between quotes below -->
~~~
Chain POSTROUTING (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
0 0 SNAT all -- any eth3 10.101.141.0/30 anywhere to:10.101.141.2
2 736 SNAT all -- any eth2 10.0.0.0/24 anywhere to:10.0.0.1
23 1515 SNAT all -- any eth1 anywhere anywhere to:46.99.52.18
~~~
## Types of changes
<!--- What types of changes does your code introduce? Put an `x` in all the boxes that apply: -->
- [ ] Breaking change (fix or feature that would cause existing functionality to change)
- [ ] New feature (non-breaking change which adds functionality)
- [X] Bug fix (non-breaking change which fixes an issue)
- [ ] Enhancement (improves an existing feature and functionality)
- [ ] Cleanup (Code refactoring and cleanup, that may add test cases)
## GitHub Issue/PRs
<!-- If this PR is to fix an issue or another PR on GH, uncomment the section and provide the id of issue/PR -->
<!-- When "Fixes: #<id>" is specified, the issue/PR will automatically be closed when this PR gets merged -->
<!-- For addressing multiple issues/PRs, use multiple "Fixes: #<id>" -->
Fixes: #2680
## Screenshots (if appropriate):
## How Has This Been Tested?
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## Checklist:
<!--- Go over all the following points, and put an `x` in all the boxes that apply. -->
<!--- If you're unsure about any of these, don't hesitate to ask. We're here to help! -->
- [x] I have read the [CONTRIBUTING](https://github.com/apache/cloudstack/blob/master/CONTRIBUTING.md) document.
- [x] My code follows the code style of this project.
- [ ] My change requires a change to the documentation.
- [ ] I have updated the documentation accordingly.
Testing
- [ ] I have added tests to cover my changes.
- [ ] All relevant new and existing integration tests have passed.
- [ ] A full integration testsuite with all test that can run on my environment has passed.
This fixes the issue that post-upgrade egress rules are not applied
on VR, restarting the network with cleanup used to be the workaround.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
This fixes routing table rule setup regression to correctly router
marked packets based on interface related ip route tables. This thereby
fixes the access of VMs in the same VPC using NAT/SNAT public IPs.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
* dependencies update
* Add extra blank line required by ...!?
* fix W605 invalid escape sequence and more blank lines
* print all installed python packages versions
- Refactors and simplifies systemvm codebase file structures keeping
the same resultant systemvm.iso packaging
- Password server systemd script and new postinit script that runs
before sshd starts
- Fixes to keepalived and conntrackd config to make rVRs work again
- New /etc/issue featuring ascii based cloudmonkey logo/message and
systemvmtemplate version
- SystemVM python codebase linted and tested. Added pylint/pep to
Travis.
- iptables re-application fixes for non-VR systemvms.
- SystemVM template build fixes.
- Default secondary storage vm service offering boosted to have 2vCPUs
and RAM equal to console proxy.
- Fixes to several marvin based smoke tests, especially rVR related
tests. rVR tests to consider 3*advert_int+skew timeout before status
is checked.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
