working till migration
This commit is contained in:
parent
b8a44eca69
commit
1dddc2197b
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@ -6,3 +6,5 @@ venv/
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log.txt
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vm_socklog/
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etcd3_wrapper/
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ucloud_common/
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@ -1,3 +0,0 @@
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[submodule "etcd3_wrapper"]
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path = etcd3_wrapper
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url = https://code.ungleich.ch/ahmedbilal/etcd3_wrapper
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3
Pipfile
3
Pipfile
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@ -5,12 +5,13 @@ verify_ssl = true
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[dev-packages]
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bandit = "*"
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pylama = "*"
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[packages]
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python-decouple = "*"
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etcd3 = "*"
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cython = "*"
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pylint = "*"
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python-etcd3 = {editable = true,git = "https://github.com/kragniz/python-etcd3"}
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[requires]
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python_version = "3.7"
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@ -1,7 +1,7 @@
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{
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"_meta": {
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"hash": {
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"sha256": "1473a03ca16049e1c2200b57b1403db764cd05a8c3a94d1d008b109127f72f87"
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"sha256": "6f0726e9d014ad330ab36d11b44a15c59316234e343697e46ea2a10ab0997a90"
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},
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"pipfile-spec": 6,
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"requires": {
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@ -25,44 +25,37 @@
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},
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"cython": {
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"hashes": [
|
||||
"sha256:04ebf16df9406d3279a2489c3327803c782d9e17637d525bfb44ecf5ec65850f",
|
||||
"sha256:1486ec88d1c73dea3846a5640054018b002608e04a791ccbd2082a47bce4440a",
|
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"sha256:20da832a5e9a8e93d1e1eb64650258956723940968eb585506531719b55b804f",
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"sha256:2464688b523d7a133b52cf1343c1c595b92fc6554af1015f74b9e49951e992d4",
|
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|
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|
||||
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|
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"sha256:48b365e32cc5639ae2c239d7bd4f8a1d920a13a7ae92113c4c938903c9400147",
|
||||
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|
||||
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|
||||
"sha256:71c553640e1ddaaf143e38dbc6cd1863fa3c0738fb1830a9aaffba9a51838f30",
|
||||
"sha256:73e2742ee1f923c5f213183bf493901f9630e395634fce5b739a53b7dc5d64be",
|
||||
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||||
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|
||||
"sha256:a7e6217d0dd864a7cc4f457172766864496efd64d24d4980df1521f75f992761",
|
||||
"sha256:ad0ed7dd5dff76eb3aae8c18d95b1c9f885a91a92132728051a704fb8060d08c",
|
||||
"sha256:b1b8eda9e931f0ca1aadb95a890811bdf530407e48c962643b85675329d99abf",
|
||||
"sha256:cec99c79205131da3ee75becea1f3f55c57bf6a1c500431de9ae7a32ac8a5cc4",
|
||||
"sha256:d4bbdaa6f61ce2ef26535a7d473d6ffa6e413013c5c580af999546bf1627ae11",
|
||||
"sha256:d8bdb4208975b12048bdace46e9dd8e3dda3872432f95b53789700a1330e6060",
|
||||
"sha256:dce0362ff9b61f8411d1efc9e16fc528dadbd3707a557561992457f5cb446297",
|
||||
"sha256:defbbbf5653629ce5cc54091ce49c6830da8d3104de53ed2169c9efcb0720f27",
|
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"sha256:e0c53a7e2b6d82ec3c26c009c937fc88eb8c7edf000c54334261beaf56bb08f2",
|
||||
"sha256:e1065bacfe5303f107896e63263537dee90920d26050f2e23c4af12c37da2db6",
|
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"sha256:e142837c4212c0b2c71e6773cb6740828922806b4c00ee4215be3ceb558671e6",
|
||||
"sha256:f4cbbab28c93ffee6ec929cf0826f0b11d2488e53a708d51142a5e62f8cd9806",
|
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"sha256:fa8f63b6551621eea9efea4db37ae401104352f0ebaee32f7d20be88cbe589c3"
|
||||
"sha256:07efba7b32c082c519b75e3b03821c2f32848e2b3e9986c784bbd8ffaf0666d7",
|
||||
"sha256:08db41daf18fabf7b7a85e39aa26954f6246994540043194af026c0df65a4942",
|
||||
"sha256:19bbe3caf885a1d2e2c30eacc10d1e45dbbefb156493fe1d5d1adc1668cc1269",
|
||||
"sha256:1c574f2f2ba760b82b2bcf6262e77e75589247dc5ef796a3ff1b2213e50ee452",
|
||||
"sha256:1dfe672c686e34598bdbaa93c3b30acb3720ae9258232a4f68ba04ee9969063d",
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"sha256:283faea84e6c4e54c3f5c8ff89aa2b6c1c3a813aad4f6d48ed3b9cc9043ef9f9",
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"sha256:2a145888d0942e7c36e86a7b7c7e2923cb9f7055805a3b72dcb137e3efdb0979",
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"sha256:3f75065936e16569d6e13dfd76de988f5eabeae460aa54770c9b961ab6f747fc",
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"sha256:4d78124f5f281f1d5d5b7919cbbc65a7073ff93562def81ee78a8307e6e72494",
|
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"sha256:5ba4d088b8e5d59b8a5911ca9c72952acf3c83296b57daf75af92fb2af1e8423",
|
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"sha256:6b19daeda1d5d1dfc973b291246f6a63a663b20c33980724d6d073c562719536",
|
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"sha256:790c7dc80fd1c3e38acefe06027e2f5a8466c128c7e47c6e140fd5316132574d",
|
||||
"sha256:7f8c4e648881454ba3ba0bcf3b21a9e1878a67d20ea2b8d9ec1c4c628592ab6b",
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"sha256:8bcd3f597290f9902548d6355898d7e376e7f3762f89db9cd50b2b58429df9e8",
|
||||
"sha256:8ffb18f71972a5c718a8600d9f52e3507f0d6fb72a978e03270d34a7035c98fb",
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"sha256:92f025df1cb391e09f65775598c7dfb7efad72d74713775db54e267f62ca94a1",
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"sha256:93cf1c72472a2fd0ef4c52f6074dab08fc28d475b9c824ba73a52701f7a48ae1",
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"sha256:9a7fa692cdc967fdbf6a053c1975137d01f6935dede2ef222c71840b290caf79",
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||||
"sha256:a68eb0c1375f2401de881692b30370a51e550052b8e346b2f71bbdbdc74a214f",
|
||||
"sha256:ac3b7a12ddd52ea910ee3a041e6bc65df7a52f0ba7bd10fb7123502af482c152",
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||||
"sha256:b402b700edaf571a0bae18ec35d5b71c266873a6616412b672435c10b6d8f041",
|
||||
"sha256:c29d069a4a30f472482343c866f7486731ad638ef9af92bfe5fca9c7323d638e",
|
||||
"sha256:d822311498f185db449b687336b4e5db7638c8d8b03bdf10ae91d74e23c7cc0c",
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||||
"sha256:dccc8df9e1ac158b06777bbaaeb4516f245f9b147701ae25e6023960e4a0c2a3",
|
||||
"sha256:e31f4b946c2765b2f35440fdb4b00c496dfc5babc53c7ae61966b41171d1d59f",
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"sha256:eb43f9e582cc221ee2832e25ea6fe5c06f2acc9da6353c562e922f107db12af8",
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"sha256:f07822248110fd6213db8bc2745fdbbccef6f2b3d18ac91a7fba29c6bc575da5",
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"sha256:ff69854f123b959d4ae14bd5330714bb9ee4360052992dc0fbd0a3dee4261f95"
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],
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"index": "pypi",
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"version": "==0.29.12"
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},
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"etcd3": {
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"hashes": [
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"sha256:25a524b9f032c6631ff0097532907dea81243eaa63c3744510fd1598cc4e0e87"
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],
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"index": "pypi",
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"version": "==0.10.0"
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"version": "==0.29.13"
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},
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"grpcio": {
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"hashes": [
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@ -176,6 +169,11 @@
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"index": "pypi",
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"version": "==3.1"
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},
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"python-etcd3": {
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"editable": true,
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"git": "https://github.com/kragniz/python-etcd3",
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"ref": "cdc4c48bde88a795230a02aa574df84ed9ccfa52"
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},
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"six": {
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"hashes": [
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"sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c",
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@ -227,6 +225,19 @@
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"index": "pypi",
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"version": "==1.6.2"
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},
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"ddt": {
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"hashes": [
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"sha256:474546b4020ce8a2f9550ba8899c28aa2c284c7bbf175bddede98be949d1ca7c",
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"sha256:d13e6af8f36238e89d00f4ebccf2bda4f6d1878be560a6600689e42077e164e3"
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],
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"version": "==1.2.1"
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},
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"gitdb": {
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"hashes": [
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"sha256:a3ebbc27be035a2e874ed904df516e35f4a29a778a764385de09de9e0f139658"
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],
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"version": "==0.6.4"
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},
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"gitdb2": {
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"hashes": [
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"sha256:83361131a1836661a155172932a13c08bda2db3674e4caa32368aa6eb02f38c2",
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@ -236,10 +247,17 @@
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},
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"gitpython": {
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"hashes": [
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"sha256:563221e5a44369c6b79172f455584c9ebbb122a13368cc82cb4b5addff788f82",
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"sha256:8237dc5bfd6f1366abeee5624111b9d6879393d84745a507de0fda86043b65a8"
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"sha256:7428f1cc5e72d53e65c3259d5cebc22fb2b07f973c49d95b3c3d26c64890a3c3",
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||||
"sha256:a0f744a4941eac5d99033eb0adcbec83bf443ee173fda4292d92a906aedce952"
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],
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"version": "==2.1.11"
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"version": "==2.1.12"
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},
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"mccabe": {
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"hashes": [
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"sha256:ab8a6258860da4b6677da4bd2fe5dc2c659cff31b3ee4f7f5d64e79735b80d42",
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||||
"sha256:dd8d182285a0fe56bace7f45b5e7d1a6ebcbf524e8f3bd87eb0f125271b8831f"
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],
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"version": "==0.6.1"
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},
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"pbr": {
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"hashes": [
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@ -248,6 +266,34 @@
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],
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"version": "==5.4.1"
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},
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"pycodestyle": {
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"hashes": [
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"sha256:95a2219d12372f05704562a14ec30bc76b05a5b297b21a5dfe3f6fac3491ae56",
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"sha256:e40a936c9a450ad81df37f549d676d127b1b66000a6c500caa2b085bc0ca976c"
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],
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"version": "==2.5.0"
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},
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"pydocstyle": {
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"hashes": [
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"sha256:58c421dd605eec0bce65df8b8e5371bb7ae421582cdf0ba8d9435ac5b0ffc36a"
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],
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"version": "==4.0.0"
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},
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"pyflakes": {
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"hashes": [
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"sha256:17dbeb2e3f4d772725c777fabc446d5634d1038f234e77343108ce445ea69ce0",
|
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"sha256:d976835886f8c5b31d47970ed689944a0262b5f3afa00a5a7b4dc81e5449f8a2"
|
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],
|
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"version": "==2.1.1"
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},
|
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"pylama": {
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"hashes": [
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"sha256:9bae53ef9c1a431371d6a8dca406816a60d547147b60a4934721898f553b7d8f",
|
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"sha256:fd61c11872d6256b019ef1235be37b77c922ef37ac9797df6bd489996dddeb15"
|
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],
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"index": "pypi",
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"version": "==7.7.1"
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},
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"pyyaml": {
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"hashes": [
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"sha256:57acc1d8533cbe51f6662a55434f0dbecfa2b9eaf115bede8f6fd00115a0c0d3",
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@ -271,6 +317,12 @@
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],
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"version": "==1.12.0"
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},
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"smmap": {
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"hashes": [
|
||||
"sha256:0e2b62b497bd5f0afebc002eda4d90df9d209c30ef257e8673c90a6b5c119d62"
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||||
],
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||||
"version": "==0.9.0"
|
||||
},
|
||||
"smmap2": {
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||||
"hashes": [
|
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"sha256:0555a7bf4df71d1ef4218e4807bbf9b201f910174e6e08af2e138d4e517b4dde",
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@ -278,6 +330,12 @@
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],
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"version": "==2.0.5"
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},
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"snowballstemmer": {
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"hashes": [
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"sha256:9f3b9ffe0809d174f7047e121431acf99c89a7040f0ca84f94ba53a498e6d0c9"
|
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],
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"version": "==1.9.0"
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},
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"stevedore": {
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"hashes": [
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"sha256:7be098ff53d87f23d798a7ce7ae5c31f094f3deb92ba18059b1aeb1ca9fec0a0",
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|
|
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@ -1 +0,0 @@
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Subproject commit d079acadf29e6df55c329574604148631d4ad4bc
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@ -0,0 +1 @@
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../etcd3_wrapper/
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270
main.py
270
main.py
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|
@ -6,47 +6,27 @@
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|||
# For QEMU Monitor Protocol Commands Information, See
|
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# https://qemu.weilnetz.de/doc/qemu-doc.html#pcsys_005fmonitor
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import json
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import argparse
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import qmp
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||||
import logging
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import os
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import subprocess
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import atexit
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import signal
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import threading
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import time
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||||
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||||
from etcd3_wrapper import Etcd3Wrapper
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from dataclasses import dataclass
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from typing import Union
|
||||
from functools import wraps
|
||||
from decouple import config
|
||||
from datetime import datetime
|
||||
from ucloud_common.enums import VMStatus, RUNNING_VM_STATUSES
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from ucloud_common.rbd import RBD
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from ucloud_common.vm import VmPool, VMEntry, VMStatus
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from ucloud_common.host import HostPool, HostEntry
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running_vms = []
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vnc_port_pool = list(range(0, 100))
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client = Etcd3Wrapper()
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||||
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||||
@dataclass
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class VM:
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key: str
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||||
vm: qmp.QEMUMachine
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||||
|
||||
|
||||
class RBD(object):
|
||||
@staticmethod
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def ls(pool):
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output = ""
|
||||
try:
|
||||
output = subprocess.check_output(
|
||||
["rbd", "ls", pool], stderr=subprocess.PIPE
|
||||
).decode("utf-8").strip()
|
||||
except subprocess.CalledProcessError as e:
|
||||
raise Exception(e.stderr)
|
||||
return output.split("\n")
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||||
|
||||
|
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VM_POOL = None
|
||||
HOST_POOL = None
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||||
|
||||
logging.basicConfig(
|
||||
level=logging.DEBUG,
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|
|
@ -56,25 +36,19 @@ logging.basicConfig(
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|||
datefmt="%d-%b-%y %H:%M:%S",
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)
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||||
|
||||
@dataclass
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class VM:
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key: str
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vm: qmp.QEMUMachine
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def goodbye(host):
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vms = client.get_prefix("/v1/vm", value_in_json=True)
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vms = filter(lambda v: v.value["hostname"] == host.key, vms)
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for vm in vms:
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vm.value["hostname"] = ""
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||||
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||||
if vm.value["status"] in RUNNING_VM_STATUSES:
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vm.value["status"] = VMStatus.requested_start
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client.put(vm.key, vm.value, value_in_json=True)
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host.value["status"] = "DEAD"
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host.value["last_heartbeat"] = datetime.utcnow().isoformat()
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client.put(host.key, json.dumps(host.value))
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def update_heartbeat(host: HostEntry):
|
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while True:
|
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host.update_heartbeat()
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HOST_POOL.put(host)
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time.sleep(10)
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logging.info(f"Host {host.key} dead! at {host.value['last_heartbeat']}")
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print("Goodbye")
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os.kill(os.getpid(), signal.SIGKILL)
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logging.info(f"Updated last heartbeat time {host.last_heartbeat}")
|
||||
|
||||
|
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def need_running_vm(func):
|
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|
|
@ -86,48 +60,55 @@ def need_running_vm(func):
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|||
status = vm.vm.command("query-status")
|
||||
logging.debug(f"VM Status Check - {status}")
|
||||
except OSError:
|
||||
logging.info(f"{func.__name__} failed - VM {e.key} - Unknown Error")
|
||||
logging.info(
|
||||
f"{func.__name__} failed - VM {e.key} - Unknown Error"
|
||||
)
|
||||
|
||||
return func(e)
|
||||
else:
|
||||
logging.info(f"{func.__name__} failed because VM {e.key} is not running")
|
||||
logging.info(
|
||||
f"{func.__name__} failed because VM {e.key} is not running"
|
||||
)
|
||||
return
|
||||
|
||||
return wrapper
|
||||
|
||||
|
||||
def create_vm(vm_uuid, e):
|
||||
def create_vm(vm):
|
||||
image = client.get(
|
||||
f"/v1/image/{e.value['image_uuid']}", value_in_json=True
|
||||
f"/v1/image/{vm.value['image_uuid']}", value_in_json=True
|
||||
)
|
||||
if image:
|
||||
logging.debug(image)
|
||||
image_uuid = e.value["image_uuid"]
|
||||
|
||||
logging.info("Creating New VM...")
|
||||
_command_to_create = f"rbd clone images/{image_uuid}@protected uservms/{vm_uuid}"
|
||||
_command_to_create = f"rbd clone images/{vm.image_uuid}@protected uservms/{vm.uuid}"
|
||||
try:
|
||||
subprocess.call(_command_to_create.split(" "))
|
||||
# TODO: Make it specific
|
||||
vm.status = VMStatus.requested_start
|
||||
VM_POOL.put(vm)
|
||||
except:
|
||||
pass
|
||||
e.value["status"] = "REQUESTED_START"
|
||||
client.put(e.key, json.dumps(e.value))
|
||||
logging.exception("Can't clone image")
|
||||
|
||||
|
||||
def start_vm(vm_path, e):
|
||||
if not vm_path.split("/")[-1] in RBD.ls("uservms"):
|
||||
logging.info(f"Image file of vm {e.key} does not exists")
|
||||
logging.info(f"Setting vm {e.key} status to DELETED")
|
||||
e.value["status"] = "DELETED"
|
||||
client.put(e.key, json.dumps(e.value))
|
||||
try:
|
||||
user_vms = RBD.ls("uservms")
|
||||
except:
|
||||
logging.info("Can't access uservms pool")
|
||||
return
|
||||
|
||||
if not vm_path.split("/")[-1] in user_vms:
|
||||
logging.info(f"Image file of vm {e.key} does not exists")
|
||||
logging.info(f"Deleting vm {e.key}")
|
||||
client.client.delete(e.key)
|
||||
return
|
||||
|
||||
_vm = get_vm(running_vms, e.key)
|
||||
if _vm:
|
||||
logging.info(f"{e.key} already running")
|
||||
e.value["status"] = "RUNNING"
|
||||
client.put(e.key, json.dumps(e.value))
|
||||
e.status = VMStatus.running
|
||||
VM_POOL.put(e)
|
||||
return
|
||||
|
||||
# FIXME: There should be better vnc port allocation scheme
|
||||
|
|
@ -136,10 +117,13 @@ def start_vm(vm_path, e):
|
|||
test_dir="vm_socklog",
|
||||
args=[
|
||||
vm_path,
|
||||
"-boot", "c", # First Boot Hard drive
|
||||
"-m", "1024", # RAM limit
|
||||
"-boot",
|
||||
"c", # First Boot Hard drive
|
||||
"-m",
|
||||
"1024", # RAM limit
|
||||
# Ever growing port number
|
||||
"-vnc", f":{vnc_port_pool.pop(0)}", # Allow VNC
|
||||
"-vnc",
|
||||
f":{vnc_port_pool.pop(0)}", # Allow VNC
|
||||
],
|
||||
)
|
||||
try:
|
||||
|
|
@ -147,16 +131,16 @@ def start_vm(vm_path, e):
|
|||
vm.launch()
|
||||
if vm.is_running():
|
||||
running_vms.append(VM(e.key, vm))
|
||||
e.value["status"] = "RUNNING"
|
||||
client.put(e.key, e.value, value_in_json=True)
|
||||
e.status = VMStatus.running
|
||||
VM_POOL.put(e)
|
||||
else:
|
||||
e.value["status"] = "KILLED"
|
||||
client.put(e.key, e.value, value_in_json=True)
|
||||
e.declare_killed()
|
||||
VM_POOL.put(e)
|
||||
return
|
||||
except (qmp.QEMUMachineError, TypeError):
|
||||
logging.exception(f"Machine Error Occurred on {e.key}")
|
||||
e.value["status"] = "KILLED"
|
||||
client.put(e.key, e.value, value_in_json=True)
|
||||
e.declare_killed()
|
||||
VM_POOL.put(e)
|
||||
else:
|
||||
logging.info(f"Started Successfully {e.key}")
|
||||
|
||||
|
|
@ -166,8 +150,8 @@ def suspend_vm(e):
|
|||
vm = get_vm(running_vms, e.key)
|
||||
vm.vm.command("stop")
|
||||
if vm.vm.command("query-status")["status"] == "paused":
|
||||
e.value["status"] = "SUSPENDED"
|
||||
client.put(e.key, json.dumps(e.value))
|
||||
e.status = VMStatus.suspended
|
||||
VM_POOL.put(e)
|
||||
logging.info(f"Successfully suspended VM {e.key}")
|
||||
else:
|
||||
logging.info(f"Suspending VM {e.key} failed")
|
||||
|
|
@ -178,8 +162,8 @@ def resume_vm(e):
|
|||
vm = get_vm(running_vms, e.key)
|
||||
vm.vm.command("cont")
|
||||
if vm.vm.command("query-status")["status"] == "running":
|
||||
e.value["status"] = "RUNNING"
|
||||
client.put(e.key, json.dumps(e.value))
|
||||
e.status = VMStatus.running
|
||||
VM_POOL.put(e)
|
||||
logging.info(f"Successfully resumed VM {e.key}")
|
||||
else:
|
||||
logging.info(f"Resuming VM {e.key} failed")
|
||||
|
|
@ -191,146 +175,110 @@ def shutdown_vm(e):
|
|||
vm.vm.shutdown()
|
||||
if not vm.vm.is_running():
|
||||
logging.info(f"VM {e.key} shutdown successfully")
|
||||
e.value["status"] = "STOPPED"
|
||||
client.put(e.key, json.dumps(e.value))
|
||||
e.status = VMStatus.stopped
|
||||
VM_POOL.put(e)
|
||||
running_vms.remove(vm)
|
||||
|
||||
|
||||
def delete_vm(e):
|
||||
#FIXME: Implementation Obseleted after CEPH Integeration
|
||||
# FIXME: Implementation Obseleted after CEPH Integeration
|
||||
logging.info(f"Deleting VM {e.key}")
|
||||
shutdown_vm(e)
|
||||
vm = client.get(e.key, value_in_json=True)
|
||||
if vm:
|
||||
vm_id = e.key.split('/')[-1]
|
||||
vm_owner = e.value['owner']
|
||||
vm_path = f"{config('BASE_DIR')}/{vm_owner}/.vm/{vm_id}"
|
||||
|
||||
if os.path.exists(vm_path):
|
||||
os.remove(vm_path)
|
||||
client.client.delete(e.key)
|
||||
logging.info(f"VM {vm.key} deleted")
|
||||
else:
|
||||
logging.info(f"Cannot delete key {e.key} because it doesn't exists")
|
||||
client.client.delete(e.key)
|
||||
|
||||
|
||||
def get_vm(vm_list: list, vm_key) -> Union[VM, None]:
|
||||
return next((vm for vm in vm_list if vm.key == vm_key), None)
|
||||
|
||||
|
||||
def maintenence(e, host):
|
||||
|
||||
# VMs on this Host
|
||||
_vms = filter(lambda v: v.value["hostname"] == host.key, client.get_prefix("/v1/vm", value_in_json=True))
|
||||
alleged_running_vms = filter(lambda v: v.value["status"] == "RUNNING", _vms)
|
||||
|
||||
# TODO: Delete this. This was intended to start VMs that
|
||||
# requested to be started when ucloud-vm is not running.
|
||||
# This is no longer needed as we check for pending requests
|
||||
# at the start and handle them.
|
||||
|
||||
# should_be_running = filter(lambda v: v.value["status"] == "REQUESTED_START", _vms)
|
||||
|
||||
def maintenence(host):
|
||||
_vms = VM_POOL.by_host(host.key)
|
||||
alleged_running_vms = VM_POOL.by_status("RUNNING", _vms)
|
||||
|
||||
for vm in alleged_running_vms:
|
||||
_vm = get_vm(running_vms, vm.key)
|
||||
if (_vm and not _vm.vm.is_running()) or _vm is None:
|
||||
logging.debug(f"{_vm} {vm.key}")
|
||||
logging.info(f"{vm.key} is not running but is said to be running")
|
||||
logging.info(
|
||||
f"{vm.key} is not running but is said to be running"
|
||||
)
|
||||
logging.info(f"Updating {vm.key} status to KILLED")
|
||||
vm.value["status"] = "KILLED"
|
||||
client.put(vm.key, json.dumps(vm.value))
|
||||
|
||||
# TODO: Delete this. This was intended to start VMs that
|
||||
# requested to be started when ucloud-vm is not running.
|
||||
# This is no longer needed as we check for pending requests
|
||||
# at the start and handle them.
|
||||
|
||||
# for vm in should_be_running:
|
||||
# vm_path = f"rbd:uservms/{vm.key.split('/')[-1]}"
|
||||
# start_vm(vm_path, e)
|
||||
|
||||
|
||||
# TODO: Check whether a vm is running on this host that
|
||||
# is not supposed to be running on this host
|
||||
|
||||
host.value["status"] = "ALIVE"
|
||||
host.value["last_heartbeat"] = datetime.utcnow().isoformat()
|
||||
client.put(host.key, json.dumps(host.value))
|
||||
logging.info(f"Updated last heartbeat time {host.value['last_heartbeat']}")
|
||||
vm.declare_killed()
|
||||
VM_POOL.put(vm)
|
||||
running_vms.remove(vm)
|
||||
|
||||
|
||||
def main():
|
||||
argparser = argparse.ArgumentParser()
|
||||
argparser.add_argument("hostname", help="Name of this host. e.g /v1/host/1")
|
||||
argparser.add_argument(
|
||||
"hostname", help="Name of this host. e.g /v1/host/1"
|
||||
)
|
||||
args = argparser.parse_args()
|
||||
|
||||
host = client.get(args.hostname, value_in_json=True)
|
||||
global HOST_POOL, VM_POOL
|
||||
HOST_POOL = HostPool(client, "/v1/host")
|
||||
VM_POOL = VmPool(client, "/v1/vm")
|
||||
|
||||
host = HOST_POOL.get(args.hostname)
|
||||
if not host:
|
||||
print("No Such Host")
|
||||
exit(1)
|
||||
|
||||
host.value["status"] = "ALIVE"
|
||||
host.value["last_heartbeat"] = datetime.utcnow().isoformat()
|
||||
client.put(host.key, host.value, value_in_json=True)
|
||||
|
||||
atexit.register(goodbye, host=host)
|
||||
# It is seen that under heavy load, timeout event doesn't come
|
||||
# in a predictive manner which delays heart beat update which
|
||||
# in turn misunderstood by scheduler that the host is dead
|
||||
# when it is actually alive. So, to ensure that we update the
|
||||
# heart beat in a predictive manner we start Heart beat updating
|
||||
# mechanism in separated thread
|
||||
heartbeat_updating_thread = threading.Thread(target=update_heartbeat, args=(host,))
|
||||
heartbeat_updating_thread.start()
|
||||
|
||||
for events_iterator in [client.get_prefix("/v1/vm/"),
|
||||
client.watch_prefix("/v1/vm/", timeout=10)]:
|
||||
for events_iterator in [
|
||||
client.get_prefix("/v1/vm/", value_in_json=True),
|
||||
client.watch_prefix("/v1/vm/", timeout=10, value_in_json=True),
|
||||
]:
|
||||
for e in events_iterator:
|
||||
# TODO: Should we disable timeout alarm inside
|
||||
# event handling code and enable it while going outside
|
||||
|
||||
try:
|
||||
e.value = json.loads(e.value)
|
||||
except json.JSONDecodeError:
|
||||
logging.error(f"Invalid JSON {e.value}")
|
||||
continue
|
||||
e = VMEntry(e)
|
||||
|
||||
e_status = e.value["status"]
|
||||
|
||||
if e_status == "TIMEOUT":
|
||||
client.client.delete(e.key)
|
||||
if e.status == "TIMEOUT":
|
||||
logging.info("Timeout")
|
||||
maintenence(e, host)
|
||||
maintenence(host)
|
||||
continue
|
||||
|
||||
e_hostname = e.value["hostname"]
|
||||
if hasattr(e.value, "migration_destination"):
|
||||
e_migration_destination = e.value["migration_destination"]
|
||||
if hasattr(e, "migration_destination"):
|
||||
e_migration_destination = e.value[
|
||||
"migration_destination"
|
||||
]
|
||||
else:
|
||||
e_migration_destination = ""
|
||||
|
||||
vm_uuid = e.key.split("/")[-1]
|
||||
|
||||
# If the event is directed toward me or
|
||||
# I am destination of a REQUESTED_MIGRATION
|
||||
if e_hostname == host.key or\
|
||||
e_migration_destination == host.key:
|
||||
if e.hostname == host.key or e_migration_destination == host.key:
|
||||
logging.debug(f"EVENT: {e}")
|
||||
|
||||
if e_status == "SCHEDULED_DEPLOY":
|
||||
create_vm(vm_uuid, e)
|
||||
if e.status == "SCHEDULED_DEPLOY":
|
||||
create_vm(e)
|
||||
|
||||
elif e_status == "REQUESTED_SUSPEND":
|
||||
elif e.status == "REQUESTED_SUSPEND":
|
||||
suspend_vm(e)
|
||||
|
||||
elif e_status == "REQUESTED_RESUME":
|
||||
elif e.status == "REQUESTED_RESUME":
|
||||
resume_vm(e)
|
||||
|
||||
elif e_status == "REQUESTED_START":
|
||||
vm_path = f"rbd:uservms/{vm_uuid}"
|
||||
elif e.status == "REQUESTED_START":
|
||||
vm_path = f"rbd:uservms/{e.uuid}"
|
||||
start_vm(vm_path, e)
|
||||
|
||||
elif e_status == "REQUESTED_SHUTDOWN":
|
||||
elif e.status == "REQUESTED_SHUTDOWN":
|
||||
shutdown_vm(e)
|
||||
|
||||
elif e_status == "DELETED":
|
||||
elif e.status == "DELETED":
|
||||
delete_vm(e)
|
||||
|
||||
# elif e_status == "REQUESTED_MIGRATION":
|
||||
# if e.value["migration_destination"]
|
||||
|
||||
|
||||
logging.info(f"Running VMs {running_vms}")
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1 @@
|
|||
../ucloud_common/
|
||||
|
|
@ -1,34 +0,0 @@
|
|||
from enum import Enum
|
||||
|
||||
class VMStatus(Enum):
|
||||
# Must be only assigned to brand new VM
|
||||
requested_new = "REQUESTED_NEW"
|
||||
|
||||
# Only Assigned to already created vm
|
||||
requested_start = "REQUESTED_START"
|
||||
|
||||
# These all are for running vms
|
||||
requested_shutdown = "REQUESTED_SHUTDOWN"
|
||||
requested_suspend = "REQUESTED_SUSPEND"
|
||||
requested_resume = "REQUESTED_RESUME"
|
||||
requested_migrate = "REQUESTED_MIGRATE"
|
||||
|
||||
# either its image is not found or user requested
|
||||
# to delete it
|
||||
deleted = "DELETED"
|
||||
|
||||
stopped = "STOPPED" # After requested_shutdown
|
||||
killed = "KILLED" # either host died or vm died itself
|
||||
|
||||
running = "RUNNING"
|
||||
suspended = "SUSPENDED"
|
||||
|
||||
|
||||
class HostStatus(Enum):
|
||||
alive = "ALIVE"
|
||||
dead = "DEAD"
|
||||
|
||||
|
||||
RUNNING_VM_STATUSES = [VMStatus.requested_shutdown, VMStatus.requested_suspend,
|
||||
VMStatus.requested_resume, VMStatus.requested_migrate,
|
||||
VMStatus.running, VMStatus.suspended]
|
||||
Loading…
Reference in New Issue