集群搭建

kubeasz + ks_install 2.1.0 + k8s v1.15.0

背景知识

测试项目 https://github.com/kubesphere/s2i-python-container/tree/master/examples/django-test-app
python==3.6
django==1.11.23

创建python s2i 服务

项目构建日志

I0219 12:14:26.167998       1 docker.go:506] Using locally available image "kubesphere/python-36-centos7:v2.1.0"
I0219 12:14:26.171667       1 docker.go:506] Using locally available image "kubesphere/python-36-centos7:v2.1.0"
I0219 12:14:26.176223       1 docker.go:506] Using locally available image "kubesphere/python-36-centos7:v2.1.0"
I0219 12:14:26.176238       1 docker.go:808] Image sha256:696369947b4ef710ba836bcc1b94019b6bcf1adba2a0c41447af82880fd59264 contains scripts-url set to "image:///usr/libexec/s2i"
I0219 12:14:26.176265       1 sti.go:205] Preparing to build <镜像仓库>/infra/open-api:v4.0
I0219 12:14:26.176664       1 clone.go:39] Cloning sources into "/tmp/s2i230304812/upload/tmp"
Cloning into '/tmp/s2i230304812/upload/tmp'...
remote: Enumerating objects: 122, done.        
remote: Counting objects:   0% (1/122)        
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remote: Counting objects:  99% (121/122)        
remote: Counting objects: 100% (122/122)        
remote: Counting objects: 100% (122/122), done.        
remote: Compressing objects:   0% (1/111)        
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remote: Compressing objects:  97% (108/111)        
remote: Compressing objects:  98% (109/111)        
remote: Compressing objects:  99% (110/111)        
remote: Compressing objects: 100% (111/111)        
remote: Compressing objects: 100% (111/111), done.        
Receiving objects:   0% (1/122)
Receiving objects:   1% (2/122)
Receiving objects:   2% (3/122)
Receiving objects:   3% (4/122)
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Receiving objects:  44% (54/122)
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Receiving objects:  46% (57/122)
Receiving objects:  47% (58/122)
Receiving objects:  48% (59/122)
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Receiving objects:  67% (82/122)
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Receiving objects:  69% (85/122)
Receiving objects:  70% (86/122)
Receiving objects:  71% (87/122)
Receiving objects:  72% (88/122)
Receiving objects:  73% (90/122)
Receiving objects:  74% (91/122)
Receiving objects:  75% (92/122)
Receiving objects:  76% (93/122)
Receiving objects:  77% (94/122)
Receiving objects:  78% (96/122)
Receiving objects:  79% (97/122)
Receiving objects:  80% (98/122)
Receiving objects:  81% (99/122)
Receiving objects:  82% (101/122)
Receiving objects:  83% (102/122)
Receiving objects:  84% (103/122)
Receiving objects:  85% (104/122)
Receiving objects:  86% (105/122)
Receiving objects:  87% (107/122)
Receiving objects:  88% (108/122)
Receiving objects:  89% (109/122)
Receiving objects:  90% (110/122)
Receiving objects:  91% (112/122)
Receiving objects:  92% (113/122)
Receiving objects:  93% (114/122)
remote: Total 122 (delta 38), reused 0 (delta 0)        
Receiving objects:  94% (115/122)
Receiving objects:  95% (116/122)
Receiving objects:  96% (118/122)
Receiving objects:  97% (119/122)
Receiving objects:  98% (120/122)
Receiving objects:  99% (121/122)
Receiving objects: 100% (122/122)
Receiving objects: 100% (122/122), 24.50 KiB | 8.17 MiB/s, done.
Resolving deltas:   0% (0/38)
Resolving deltas:   2% (1/38)
Resolving deltas:  10% (4/38)
Resolving deltas:  15% (6/38)
Resolving deltas:  18% (7/38)
Resolving deltas:  21% (8/38)
Resolving deltas:  23% (9/38)
Resolving deltas:  31% (12/38)
Resolving deltas:  34% (13/38)
Resolving deltas:  42% (16/38)
Resolving deltas:  44% (17/38)
Resolving deltas:  47% (18/38)
Resolving deltas:  50% (19/38)
Resolving deltas:  52% (20/38)
Resolving deltas:  55% (21/38)
Resolving deltas:  57% (22/38)
Resolving deltas:  60% (23/38)
Resolving deltas:  63% (24/38)
Resolving deltas:  71% (27/38)
Resolving deltas:  76% (29/38)
Resolving deltas:  78% (30/38)
Resolving deltas:  86% (33/38)
Resolving deltas: 100% (38/38)
Resolving deltas: 100% (38/38), done.
Switched to a new branch 'test_s2i'
Branch 'test_s2i' set up to track remote branch 'test_s2i' from 'origin'.
I0219 12:14:26.323596       1 clone.go:56] Checked out to "test_s2i"
I0219 12:14:26.340884       1 clone.go:62] Updated submodules for "test_s2i"
I0219 12:14:26.352270       1 fs.go:302] Removing directory '/tmp/s2i230304812/upload/src'
I0219 12:14:26.356842       1 fs.go:302] Removing directory '/tmp/s2i230304812/upload/tmp'
I0219 12:14:26.359398       1 install.go:261] Using "assemble" installed from "image:///usr/libexec/s2i/assemble"
I0219 12:14:26.359423       1 install.go:261] Using "run" installed from "image:///usr/libexec/s2i/run"
I0219 12:14:26.359436       1 install.go:261] Using "save-artifacts" installed from "image:///usr/libexec/s2i/save-artifacts"
I0219 12:14:26.359457       1 ignore.go:64] .s2iignore file does not exist
I0219 12:14:26.359469       1 sti.go:214] Clean build will be performed
I0219 12:14:26.359478       1 sti.go:228] Running "assemble" in "<镜像仓库>/infra/open-api:v4.0"
I0219 12:14:26.359487       1 sti.go:592] Using image name kubesphere/python-36-centos7:v2.1.0
I0219 12:14:26.361034       1 docker.go:506] Using locally available image "kubesphere/python-36-centos7:v2.1.0"
I0219 12:14:26.361077       1 environment.go:41] Setting 1 environment variables provided by environment file in sources
I0219 12:14:26.361174       1 sti.go:710] starting the source uploading ...
I0219 12:14:26.363686       1 docker.go:808] Image sha256:696369947b4ef710ba836bcc1b94019b6bcf1adba2a0c41447af82880fd59264 contains scripts-url set to "image:///usr/libexec/s2i"
I0219 12:14:26.363696       1 docker.go:882] Base directory for S2I scripts is '/usr/libexec/s2i'. Untarring destination is '/tmp'.
I0219 12:14:26.363813       1 docker.go:1048] Creating container with options {Name:"s2i_kubesphere_python_36_centos7_v2_1_0_7dcf7823" Config:{Hostname: Domainname: User: AttachStdin:false AttachStdout:true AttachStderr:false ExposedPorts:map[] Tty:false OpenStdin:true StdinOnce:true Env:[PIP_INDEX_URL=https://mirrors.aliyun.com/pypi/simple/] Cmd:[/bin/sh -c tar -C /tmp -xf - && /usr/libexec/s2i/assemble] Healthcheck:<nil> ArgsEscaped:false Image:kubesphere/python-36-centos7:v2.1.0 Volumes:map[] WorkingDir: Entrypoint:[] NetworkDisabled:false MacAddress: OnBuild:[] Labels:map[] StopSignal: StopTimeout:<nil> Shell:[]} HostConfig:&{Binds:[s2i_python36_cache:/opt/app-root/lib] ContainerIDFile: LogConfig:{Type: Config:map[]} NetworkMode: PortBindings:map[] RestartPolicy:{Name: MaximumRetryCount:0} AutoRemove:false VolumeDriver: VolumesFrom:[] CapAdd:[] CapDrop:[] DNS:[] DNSOptions:[] DNSSearch:[] ExtraHosts:[] GroupAdd:[] IpcMode: Cgroup: Links:[] OomScoreAdj:0 PidMode: Privileged:false PublishAllPorts:false ReadonlyRootfs:false SecurityOpt:[] StorageOpt:map[] Tmpfs:map[] UTSMode: UsernsMode: ShmSize:67108864 Sysctls:map[] Runtime: ConsoleSize:[0 0] Isolation: Resources:{CPUShares:0 Memory:0 NanoCPUs:0 CgroupParent: BlkioWeight:0 BlkioWeightDevice:[] BlkioDeviceReadBps:[] BlkioDeviceWriteBps:[] BlkioDeviceReadIOps:[] BlkioDeviceWriteIOps:[] CPUPeriod:0 CPUQuota:0 CPURealtimePeriod:0 CPURealtimeRuntime:0 CpusetCpus: CpusetMems: Devices:[] DeviceCgroupRules:[] DiskQuota:0 KernelMemory:0 MemoryReservation:0 MemorySwap:0 MemorySwappiness:<nil> OomKillDisable:<nil> PidsLimit:0 Ulimits:[] CPUCount:0 CPUPercent:0 IOMaximumIOps:0 IOMaximumBandwidth:0} Mounts:[] Init:<nil>}} ...
I0219 12:14:26.409694       1 docker.go:1080] Attaching to container "aa93d37e36d8d5fe3950ba1021c4241993c62108f2c2aeba317f6e5a5843de79" ...
I0219 12:14:26.410187       1 docker.go:1091] Starting container "aa93d37e36d8d5fe3950ba1021c4241993c62108f2c2aeba317f6e5a5843de79" ...
I0219 12:14:26.635509       1 sti.go:718] ---> Installing application source ...
I0219 12:14:26.637548       1 sti.go:718] ---> Installing dependencies ...
I0219 12:14:26.964159       1 sti.go:718] Requirement already satisfied: Django==1.11.23 in /opt/app-root/lib/python3.6/site-packages (from -r requirements.txt (line 1))
I0219 12:14:26.968443       1 sti.go:718] Requirement already satisfied: pytz in /opt/app-root/lib/python3.6/site-packages (from Django==1.11.23->-r requirements.txt (line 1))
I0219 12:14:27.644327       1 sti.go:722] You are using pip version 9.0.1, however version 20.0.2 is available.
I0219 12:14:27.644342       1 sti.go:722] You should consider upgrading via the 'pip install --upgrade pip' command.
I0219 12:14:27.716181       1 sti.go:718] ---> Collecting Django static files ...
I0219 12:14:28.378996       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/css/base.css'
I0219 12:14:28.379664       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/css/changelists.css'
I0219 12:14:28.380036       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/css/dashboard.css'
I0219 12:14:28.380371       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/css/fonts.css'
I0219 12:14:28.380702       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/css/forms.css'
I0219 12:14:28.380987       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/css/login.css'
I0219 12:14:28.381682       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/css/rtl.css'
I0219 12:14:28.382265       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/css/widgets.css'
I0219 12:14:28.383080       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/fonts/LICENSE.txt'
I0219 12:14:28.383660       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/fonts/README.txt'
I0219 12:14:28.383959       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/fonts/Roboto-Bold-webfont.woff'
I0219 12:14:28.384401       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/fonts/Roboto-Light-webfont.woff'
I0219 12:14:28.384735       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/fonts/Roboto-Regular-webfont.woff'
I0219 12:14:28.385305       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/LICENSE'
I0219 12:14:28.385670       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/README.txt'
I0219 12:14:28.385949       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/calendar-icons.svg'
I0219 12:14:28.386285       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/icon-addlink.svg'
I0219 12:14:28.386562       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/icon-alert.svg'
I0219 12:14:28.386902       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/icon-calendar.svg'
I0219 12:14:28.387292       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/icon-changelink.svg'
I0219 12:14:28.387572       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/icon-clock.svg'
I0219 12:14:28.387846       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/icon-deletelink.svg'
I0219 12:14:28.388113       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/icon-no.svg'
I0219 12:14:28.388447       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/icon-unknown-alt.svg'
I0219 12:14:28.388763       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/icon-unknown.svg'
I0219 12:14:28.389071       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/icon-yes.svg'
I0219 12:14:28.389395       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/inline-delete.svg'
I0219 12:14:28.389711       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/search.svg'
I0219 12:14:28.390085       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/selector-icons.svg'
I0219 12:14:28.390419       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/sorting-icons.svg'
I0219 12:14:28.390722       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/tooltag-add.svg'
I0219 12:14:28.391041       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/tooltag-arrowright.svg'
I0219 12:14:28.391455       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/gis/move_vertex_off.svg'
I0219 12:14:28.391785       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/img/gis/move_vertex_on.svg'
I0219 12:14:28.392291       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/SelectBox.js'
I0219 12:14:28.392654       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/SelectFilter2.js'
I0219 12:14:28.392929       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/actions.js'
I0219 12:14:28.393223       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/actions.min.js'
I0219 12:14:28.393501       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/calendar.js'
I0219 12:14:28.393786       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/cancel.js'
I0219 12:14:28.394051       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/change_form.js'
I0219 12:14:28.394342       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/collapse.js'
I0219 12:14:28.394614       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/collapse.min.js'
I0219 12:14:28.394888       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/core.js'
I0219 12:14:28.395160       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/inlines.js'
I0219 12:14:28.395449       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/inlines.min.js'
I0219 12:14:28.395717       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/jquery.init.js'
I0219 12:14:28.395989       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/popup_response.js'
I0219 12:14:28.396316       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/prepopulate.js'
I0219 12:14:28.396738       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/prepopulate.min.js'
I0219 12:14:28.396968       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/prepopulate_init.js'
I0219 12:14:28.397295       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/timeparse.js'
I0219 12:14:28.397607       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/urlify.js'
I0219 12:14:28.397984       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/admin/DateTimeShortcuts.js'
I0219 12:14:28.398386       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/admin/RelatedObjectLookups.js'
I0219 12:14:28.398765       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/vendor/jquery/LICENSE-JQUERY.txt'
I0219 12:14:28.399191       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/vendor/jquery/jquery.js'
I0219 12:14:28.399751       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/vendor/jquery/jquery.min.js'
I0219 12:14:28.400186       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/vendor/xregexp/LICENSE-XREGEXP.txt'
I0219 12:14:28.400597       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/vendor/xregexp/xregexp.js'
I0219 12:14:28.401010       1 sti.go:718] Copying '/opt/app-root/lib/python3.6/site-packages/django/contrib/admin/static/admin/js/vendor/xregexp/xregexp.min.js'
I0219 12:14:28.401349       1 sti.go:718] 
I0219 12:14:28.401358       1 sti.go:718] 61 static files copied to '/opt/app-root/src/staticfiles'.
I0219 12:14:29.306576       1 docker.go:1122] Waiting for container "aa93d37e36d8d5fe3950ba1021c4241993c62108f2c2aeba317f6e5a5843de79" to stop ...
I0219 12:14:29.407014       1 docker.go:1147] Invoking PostExecute function
I0219 12:14:29.407034       1 postexecutorstep.go:68] Skipping step: store previous image
I0219 12:14:29.407044       1 postexecutorstep.go:117] Executing step: commit image
I0219 12:14:29.408538       1 postexecutorstep.go:521] Checking for new Labels to apply... 
I0219 12:14:29.408554       1 postexecutorstep.go:529] Creating the download path '/tmp/s2i230304812/metadata'
I0219 12:14:29.458215       1 postexecutorstep.go:537] unable to download and extract 'image_metadata.json' ... continuing
I0219 12:14:29.574248       1 postexecutorstep.go:392] Executing step: report success
I0219 12:14:29.574264       1 postexecutorstep.go:396] Successfully built <镜像仓库>/infra/open-api:v4.0
I0219 12:14:29.574269       1 postexecutorstep.go:93] Skipping step: remove previous image
I0219 12:14:29.574294       1 docker.go:1058] Removing container "aa93d37e36d8d5fe3950ba1021c4241993c62108f2c2aeba317f6e5a5843de79" ...
I0219 12:14:29.590961       1 docker.go:1068] Removed container "aa93d37e36d8d5fe3950ba1021c4241993c62108f2c2aeba317f6e5a5843de79"
I0219 12:14:29.591109       1 docker.go:635] Begin to push image <<镜像仓库>/infra/open-api:v4.0>
I0219 12:14:29.842340       1 docker.go:666] pushing image <镜像仓库>/infra/open-api:v4.0: [>                                                  ]  10.24kB/1.018MB
I0219 12:14:29.918455       1 docker.go:666] pushing image <镜像仓库>/infra/open-api:v4.0: [==================================================>]  1.121MB
I0219 12:14:31.354842       1 docker.go:690] pushing image succeed
I0219 12:14:31.356398       1 sti.go:269] Start output build info.
I0219 12:14:31.375693       1 cleanup.go:33] Removing temporary directory /tmp/s2i230304812
I0219 12:14:31.375707       1 fs.go:302] Removing directory '/tmp/s2i230304812'
I0219 12:14:31.378833       1 s2i.go:82] Build completed successfully

日志显示，镜像构建成功，并成功上传到镜像仓库；

问题出现

PS: 镜像一直无法下载

查看配置模板

修改镜像仓库地址为上图后保存

ERROR: don't know how to run your application.
Please set either APP_MODULE, APP_FILE or APP_SCRIPT environment variables, or create a file 'app.py' to launch your application.

疑问点

从源码看 python-36-centos7:V2.1.0 的 run 脚本，如果安装了 django，默认会运行 python manager.py runserver;
为啥报错说找不到 app.py ; 难道还要自己写个启动脚本吗？