查看完整版本 : 對Kubernetes有興趣嘅一齊討論下

cymande 2019-4-30 08:00 PM

對Kubernetes有興趣嘅一齊討論下

我唔係Kubernetes專家,只能算入咗門咁,前後玩咗大概兩年。大家有興趣可以一齊討論交流下。
我係加拿大一家software公司做,剛入去嘅時候係做Support,用嘅語言係Java,十年左右嘅application,規模好大比較複雜,用嘅stack已經算legacy了。兩年前公司要將個application從WebSphere轉去container,全套嘢用Open Source,係Kubernetes上面deploy。我搵到呢個機會一路幫個team從將application改到適合在container裏面行、develop一個可以俾tester係VM上面install kubernetes嘅script,有時做下Research、到support幾個銀行客係佢地testing同埋production遇到嘅infrastructure方面嘅問題,仲要係DEV team內部做所有Linux同埋Container/Kubernetes相關嘅support(我地team大部分都係Windows底,唔熟Linux),一路到而家。
舊年有個Project告一段落,因爲覺得我地係交付application俾嘅客自己maintain嘅,其實係production真正去所謂DevOp嘅機會唔多,所以趁機會考咗個CKA(Certified Kubernetes Administrator),考咗兩次先過。
我對infrastructure、cloud computing、devops呢D比較有興趣,留意過一D機會但都無成,年紀又唔細了。最近係Team裏面因爲Kubernetes嘅task唔係時時有,所以有相當部分時間又做返Java Programming了。好希望有師兄可以指點下俾下意見。

[[i] 本帖最後由 cymande 於 2019-4-30 08:01 PM 編輯 [/i]]

utbabya 2019-4-30 08:16 PM

Did you do Kubernetes on cloud or own infra? It's cool and I wish I get to play with it in real project too. How did you justify at the beginning compared to other autoscaling options.

漆哥 2019-4-30 08:17 PM

版主加分啦

漆哥 2019-4-30 08:19 PM

有冇玩Ansible script?

我好熟Linux,所以好like devops呢個工種,唔計好耐以前用shell script做嘅auto deploy,最近就幫公司用IBM個RTC加一大串ANT script做automation,後來開始研究docker,Jenkins,開始覺得呢個工種有市場,加深研究

[[i] 本帖最後由 漆哥 於 2019-4-30 08:23 PM 編輯 [/i]]

cymande 2019-4-30 08:24 PM

[quote]原帖由 [i]utbabya[/i] 於 2019-4-30 08:16 PM 發表 [url=https://www.discuss.com.hk/redirect.php?goto=findpost&pid=498595265&ptid=28189789][img]https://www.discuss.com.hk/images/common/back.gif[/img][/url]
Did you do Kubernetes on cloud or own infra? It's cool and I wish I get to play with it in real project too. How did you justify at the beginning compared to other autoscaling options. [/quote]

I wasn't involved in the justification part. I was actually dragged into the team after it had been ongoing for months. For now, it seems obvious. Nobody would consider Docker Swarm seriously, I believe.
I wish I will have the opportunity to play with cloud. But so far we are still installing it on our own VMs. The customers are banks, so most if not all of them will choose a on-premise infrastructure, which they already have.
One thing which helped me a lot in understanding what's under the hood is Kelsey Hightower's Kubernetes The Hard Way. If you want to play with it on your VirtualBox VMs but prefer to know what's going on instead of using some hand tools to install for you, that would be a great reading.

cymande 2019-4-30 08:27 PM

[quote]原帖由 [i]漆哥[/i] 於 2019-4-30 08:19 PM 發表 [url=https://www.discuss.com.hk/redirect.php?goto=findpost&pid=498595391&ptid=28189789][img]https://www.discuss.com.hk/images/common/back.gif[/img][/url]
有冇玩Ansible script?

我好熟Linux,所以好like devops呢個工種,唔計好耐以前用shell script做嘅auto deploy,最近就幫公司用IBM個RTC加一大串ANT script做automation,後來開始研究docker,Jenkins,開始覺得呢個工種有市場,加深研究 ... [/quote]

Ansible好玩!我幫我地team research個application可唔可以行係RedHat OpenShift嘅時候用過Ansible來裝OpenShift,睇咗一本書(Ansible: Up and Running)。不過就係個一頭半個月咁多,而家又生疏返了;P

漆哥 2019-4-30 08:32 PM

[quote]原帖由 [i]cymande[/i] 於 2019-4-30 08:27 PM 發表 [url=https://www.discuss.com.hk/redirect.php?goto=findpost&pid=498595666&ptid=28189789][img]https://www.discuss.com.hk/images/common/back.gif[/img][/url]


Ansible好玩!我幫我地team research個application可唔可以行係RedHat OpenShift嘅時候用過Ansible來裝OpenShift,睇咗一本書(Ansible: Up and Running)。不過就係個一頭半個月咁多,而家又生疏返了;P ... [/quote]


佢嘅 infra is a script 個concept,就完美地活化咗 cloud PaaS

OpenShift似乎冷門d,都係AWS有市場

[[i] 本帖最後由 漆哥 於 2019-4-30 08:35 PM 編輯 [/i]]

cymande 2019-4-30 08:53 PM

我只略玩過GCP(GCE/GKE),AWS未點摸過。其實TerraForm都係我嘅to learn list上面,但今年有D沉迷學GoLang,未知分唔分到時間。

utbabya 2019-4-30 08:53 PM

[quote]原帖由 [i]cymande[/i] 於 2019-4-30 08:24 PM 發表 [url=https://www.discuss.com.hk/redirect.php?goto=findpost&pid=498595558&ptid=28189789][img]https://www.discuss.com.hk/images/common/back.gif[/img][/url]


I wasn't involved in the justification part. I was actually dragged into the team after it had been ongoing for months. For now, it seems obvious. Nobody would consider Docker Swarm seriously, I b ... [/quote]
Yeah I'm a Linux from scratch kinda person so knowing the ins and outs would be the sole reason to test it when I have bandwidth during free time. Thanks for the book recommendation. Haven't looked at docker for sometime, from what I see, it beats other options hands down if you don't have hardware requirements, not sure about security these days.

cymande 2019-4-30 09:28 PM

[quote]原帖由 [i]utbabya[/i] 於 2019-4-30 08:53 PM 發表 [url=https://www.discuss.com.hk/redirect.php?goto=findpost&pid=498596616&ptid=28189789][img]https://www.discuss.com.hk/images/common/back.gif[/img][/url]

Yeah I'm a Linux from scratch kinda person so knowing the ins and outs would be the sole reason to test it when I have bandwidth during free time. Thanks for the book recommendation. Haven't looked  ... [/quote]

Security is a vast topic. What makes Kubernetes interesting is it's more of an ecosystem. And it keeps changing. It didn't assume a lot on security at first, trying not to make it overcomplicated and created opportunities for startups on this aspect. But as it evolves it starts to take some of the responsibilities from downstream. It's an interesting community. A lot of things are going on. I can hardly keep up.

Andylaubobby 2019-4-30 10:30 PM

k8s is fun. 8)

look like your company is doing it as single application model. a lot of works are happening in microservices area. istio ([url=https://istio.io/]https://istio.io/[/url]) is fun too.

[[i] 本帖最後由 Andylaubobby 於 2019-5-1 03:58 AM 編輯 [/i]]

risk_compliance 2019-5-7 10:34 PM

我在澳洲 I 記做過。I 記的軟件發展好,偏偏沒有好的考試制度。
我有考redhat 試,我最驚係考試時比一個open source object 你,要integrate 落redhat ,時間又緊迫。只要course material 有提及的 open source objects 我都自己再花時間研究,qcow2, raw,  etc 全要自己研究。還有microsoft 的。
是很吃力的學習。
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