htools: add some unittests for Types.hs
Signed-off-by: Iustin Pop <iustin@google.com>Reviewed-by: Guido Trotter <ultrotter@google.com>
htools: add a DiskTemplate type
This will be used later in the Instance type.
htools: small simplification to parseUtilisation
We eliminate the local variable as it's used only once.
htools: rename Instance.auto_balance
… to autoBalance, per the recommended style.
htools: simplify some JSON-related code
Instead of manually encoding the JSValue(s), we can use showJSON aslong as we use data types that can be auto-converted.
htools: allow different result types
This patch extends the previous patch changes to allow that eachCluster function returns a different result type, as long as we havean auxiliary function that processes that into the standardIAllocResult type.
Signed-off-by: Iustin Pop <iustin@google.com>...
htools: start reorganising the IAllocator workflow
Currently, all IAllocator requests return the same result type: a listof strings (usually nodes, but can also be instance:nodes). This won'tbe true in the future, with the new request types that will return...
htools: split more code from hail/main
The logic of request processing is not separated into its ownfunction, and (beside CLI interaction, e.g. verbosity handling) alllogic is now in IAllocator.hs.
htools: move code from hail.hs to IAllocator.hs
This will make it easier to unittest the code, and keeps all login in asingle module.
htools: add parsing of input node-evac messages
This is a lot of duplication with modeMreloc, which will get sortedout once we convert mreloc to change-group.
Signed-off-by: Iustin Pop <iustin@google.com>Reviewed-by: Michael Hanselmann <hansmi@google.com>
htools: remove pre-2.4 compatibility from RAPI
This was potentially hiding issues in the group query, so let's removeit since we're now bound to the current Ganeti version.
htools: introduce new data type for node-evac
The evac-mode goes into the Types.hs module since it needs to beavailable to Cluster.hs too.
htools: docstring fixes and improvements
No code changes (except one definition being moved around in QC.hs)are contained in this patch.
One Haskell and integer sizes fix
Haskell has two main integer types:
- Int, which is a native-type, and is guaranteed to have at least [-2²⁹, 2²⁹-1] range; on 64-bit platforms, it has much higher range- Integer, which is a software type (implemented using libgmp), and...
htools: Rework some unittests
The new scaffolding which replaced the batch driver of QuickCheck 1 nowshows how many passes we have for incomplete tests. Some tests show verylow pass counts, so we rework them to have more actually valid testcases.
htools: more fixes to unsatisfiable tests
Currently the way we generate nodes in some cases is by creating atotally random node, then restricting the test based on whether the node'size' (as defined by multiples of base unit) satifies some high/lowrules. This results in hard-to-satisfy conditions, so we change this...
htools: improve more unittests
Using new functionality in QuickCheck 2 (the suchThat function), wegenerate now better test cases, such that (heh) we have no longerincomplete tests.
htools: allow unittest to be replayed
This just adds glue to allow replaying of tests using a given RNG stateand test size (both are needed for exact replayability).
htools: fix corner case in prop_Text_Load_Instance
This unittest had a corner case where it could fail if the sameprimary/secondary node names were generated.
htools: fix prop_Node_rMem corner case
This patch fixes a bug in the test specification where we allowed nodeswith zero free memory (hence no instance can be added, at all) and addsa simple labeling of the way this test can fail.
htools: Switch to QuickCheck 2.x
Since current distros don't package anymore QuickCheck 1.x, let's moveto 2.x.
This requires also a few changes to the code:
- Test.QuickCheck.Batch doesn't exist anymore, so we need to write some scaffolding code to replace it...
htools: some lint fixes
Removal of duplicate parantheses, removal of extra 'do', conversion fromnested if to guards, use hierarchical imports. All per hlint.
htools: rewrite Cluster.filterMGResults
filterMGResults was built using a sequence of map and filter calls;while this was logically correct, it used some incomplete patternmatching which with the new GHC 7 triggers a warning.
The patch rewrites it using a single foldl that does both the filtering...
htools: use the new Group.isAllocable
… instead of the hardcoded test against AllocUnallocable.
htools: add a helper function
… that checks if a group is allocable.
Check that the selected instances are known
Signed-off-by: Guido Trotter <ultrotter@google.com>Reviewed-by: Iustin Pop <iustin@google.com>
Loader.updateMovable: evaluate selected instances
This also adds docstrings for the function arguments and renames exinstto exinsts, which is how it is called in other functions, since it's alist.
Add instance selection list to Loader.mergeData
Add --select-instances hbal flag
Remove double whitespace in help string
htools: introduce a type alias for JSON objects
This makes the type definitions a bit more readable/simpler.
hail: stop using old-style 'nodes' key
hail: add parsing of multi-relocate request
This is not handled yet, this patch just adds parsing of the incomingrequest.
hail: add new data types for the multi-reloc mode
Implement balancing with no instance moves
Note that --no-disk-moves and --no-instance-moves are not incompatible,but if both are used no solution can possibly exist.
Add --no-instance-moves cli htools option
This option doesn't currently do anything.
IAllocator.hs: replace a few strings with constants
Replace instance states hardcoded with constants
Convert group policies to constants
Misc other conversions
htools: make some error messages more explicit
Add some tests for the auto_balance attribute
It tests node add/remove secondary, rather than cluster-level N+1checks, but it's better than nothing.
Signed-off-by: Iustin Pop <iustin@google.com>Reviewed-by: Adeodato Simo <dato@google.com>
Node operations: take into account auto_balance
This patch changes the add to secondary/remove from secondary code tonot deduct/add the instance's memory if the instance is notauto_balanced.
Read/write auto_balance via Text
This also means another change in the text format; we really shouldmove to json…
The unittests are also update for the new 9-column layout andadditionally a bit of improvement is done.
Read auto_balance via Rapi
Read auto_balance via Luxi
Show the auto_balance flag in the instance listing
Add a new attribute to Instance.Instance
This will mirror Ganeti's be/auto_balance one, which we need to use toproperly match N+1 computations.
htools: Make opcode naming consistent with Ganeti codebase
This patch just cleans up the htools codebase to make it more consistentwith the naming of the Ganeti codebase.
Signed-off-by: René Nussbaumer <rn@google.com>Reviewed-by: Iustin Pop <iustin@google.com>
htools: add an utility function for JSON parsing
This allows extracting values from a JSON object that might miss, buthave a well-defined default value.
Signed-off-by: Iustin Pop <iustin@google.com>Reviewed-by: René Nussbaumer <rn@google.com>
htools: Use OpMigrateInstance with allow_failover option
Before hbal decided on the fly if an instance is migratable or not. Aswe implemented failover fallback in commit d5cafd31456 we can start touse that.
Signed-off-by: René Nussbaumer <rn@google.com>...
Another attempt at fixing htools build without curl
OK, my previous small fix was not good. There is another issue: haddoc(the documentation generator) needs to pass the same compiler options(i.e. in our case, -DNO_CURL) to ghc. But in case of no curl, then it...
Fix some lint warnings in htools code
hlint gives more suggestions, but some make the code (IMHO) harder toread.
Fix lint errors in the htools code
These are just changes from hlint suggestions. Still compiles andpasses unittests.
Fix Haskell unittests without RAPI
Since we don't test for now the RAPI backend directly, we can simplyskip the import. Later we can make a conditional import if needed.
Merge remote branch 'htools/master'