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2024

在困境中找到希望

大家好!歡迎返到我哋嘅頻道。今日,我哋會分享《最幽暗的天空 只為了成就最溫暖的陽光》呢本書嘅幾個關鍵要點。呢本書係由李專寫嘅,揭示咗點樣喺最困難嘅時候找到希望,同最終實現幸福。

首先,李專強調,人生中嘅困難同挫折係無可避免嘅。佢用“幽暗的天空”嚟形容我哋嘅困境,指出喺呢啲困難中,我哋要保持希望,因為呢啲經歷最終會帶領我哋走向更光明嘅未來。

第二,書中提到,我哋需要學會如何在困境中保持積極同樂觀嘅心態。呢唔單止有助於我哋克服困難,仲可以幫助我哋發掘潛在嘅機會,同時培養我哋嘅毅力和耐心。

第三,李專強調咗人際關係嘅重要性。佢指出,支持和關愛嘅家庭同朋友係我哋度過難關嘅重要力量。無論面對咩困難,我哋都應該珍惜同利用呢啲寶貴嘅支持系統。

最後,佢提醒我哋,要有耐心和毅力。即使喺最困難嘅時候,只要我哋堅持不懈,最終一定會找到屬於自己嘅“陽光”。

通過閱讀《最幽暗的天空 只為了成就最溫暖的陽光》,我哋可以學到如何喺困境中保持積極,並且找到屬於自己嘅幸福。如果你覺得呢個視頻有幫助,請點贊、分享同訂閱我哋嘅頻道。多謝收睇!

在困境中尋找幸福

大家好!歡迎返到我哋嘅頻道。今日,我哋會分享《幸福就是在沙漠流浪後找到綠洲》呢本書嘅幾個關鍵要點。呢本書係由李專寫嘅,揭示咗點樣通過在困境中尋找希望,達到幸福。

首先,李專強調,幸福唔係一帆風順,而係要經歷過困難和挑戰。佢用“沙漠”比喻人生中的困境,而“綠洲”就係我哋努力尋找嘅希望和目標。

第二,書中提到,我哋需要學會如何在困境中保持樂觀和積極嘅心態。呢唔單止有助於我哋克服困難,仲可以幫助我哋發掘潛在嘅機會。

第三,李專強調咗人際關係嘅重要性。佢指出,支持和關愛嘅家庭同朋友係我哋找到幸福嘅重要來源。即使喺最困難嘅時候,我哋都應該珍惜同利用呢啲寶貴嘅支持系統。

最後,佢提醒我哋,要有耐心和毅力。即使喺最困難嘅時候,只要我哋堅持不懈,最終一定會找到屬於自己嘅“綠洲”。

通過閱讀《幸福就是在沙漠流浪後找到綠洲》,我哋可以學到如何喺困境中保持積極,並且找到屬於自己嘅幸福。如果你覺得呢個視頻有幫助,請點贊、分享同訂閱我哋嘅頻道。多謝收睇!

Automating DNS Management in Kubernetes with ExternalDNS

ExternalDNS is a third-party, open-source tool designed to automate the management of DNS records for Kubernetes clusters. It integrates seamlessly with Kubernetes to dynamically update DNS records in response to changes in your cluster, enabling smooth automation of exposed services, APIs, and applications. Originally developed to support AWS Route53 and Google CloudDNS, it has since expanded to support a wide array of DNS providers, making it a versatile option for cloud-native environments.

Key Concepts in ExternalDNS

ExternalDNS operates by watching “source” Kubernetes resources—like Services, Ingresses, and Istio Gateways—that represent network endpoints. It reconciles these sources with DNS records through Kubernetes Controller patterns, ensuring that records are synchronized with the underlying infrastructure changes.

Types of Sources

The main types of source objects for ExternalDNS are: - Services (of type LoadBalancer): Commonly used for high-availability applications. - Ingresses: Manage access to services based on routing rules. - Custom Resources (CRDs): Extend ExternalDNS’s compatibility with other Kubernetes configurations.

Each source is associated with an ExternalDNS instance, which will reconcile these resources with a DNS provider based on specific annotations configured on the source.

- name: external-dns
  image: //third_party/docker:external_dns
  args:
    - --source=ingress
    - --source=service
Hostname Annotations

Once ExternalDNS detects a source, it requires a hostname to identify the DNS record pointing to this source. Hostname annotations facilitate this by specifying the record name.

metadata:
  annotations:
    external-dns.alpha.kubernetes.io/hostname: api.example.io

This annotation instructs ExternalDNS to create or update a DNS record with api.example.io as the hostname.

DNS Providers and Integrations

ExternalDNS supports various DNS providers, making it a flexible choice for multi-cloud setups. DNS providers, or “integrations,” allow it to update records on platforms like AWS Route53, Google CloudDNS, and Azure DNS. Configuration for providers is specified as arguments to the ExternalDNS container:

- name: external-dns
  image: //third_party/docker:external_dns
  args:
    - --provider=aws

Policy and Registry in ExternalDNS

Policy Modes

Policies in ExternalDNS define how it interacts with DNS providers. The available policies include: - Sync: Supports create, update, and delete operations. - Upsert-only: Allows only create and update, preventing accidental deletions. - Create-only: Restricts operations to only creating new records.

Using the upsert-only policy ensures that DNS records are created or updated as needed without accidental deletions:

- name: external-dns
  image: //third_party/docker:external_dns
  args:
    - --policy=upsert-only
Registry Options

To maintain ownership and control over specific records, ExternalDNS maintains a registry that records its ownership. The TXT registry is a commonly used option, which adds a TXT record alongside DNS records managed by ExternalDNS. This TXT record identifies ownership, helping differentiate records created manually or by other tools like Terraform.

- name: external-dns
  image: //third_party/docker:external_dns
  args:
    - --registry=txt

Control Loops in ExternalDNS

ExternalDNS periodically reconciles DNS records to match the desired state specified by source objects. This reconciliation follows a control loop that can be set to run at defined intervals or respond to specific events: - Interval: Runs periodically across all sources, updating DNS records to the current state of Kubernetes objects. - Events: Triggers updates in response to specific changes in source objects, allowing for faster response times.

The following configuration sets a reconciliation interval of 10 minutes, with event-based updates:

- name: external-dns
  image: //third_party/docker:external_dns
  args:
    - --interval=10m
    - --events

Conclusion

ExternalDNS offers a powerful way to automate DNS record management in Kubernetes environments. By integrating with multiple DNS providers and offering flexible policies and registry options, it reduces the manual burden of DNS management and ensures records are always synchronized with service endpoints. ExternalDNS is a valuable tool in cloud-native setups, automating the exposure of essential services and APIs and maintaining operational efficiency across environments.

自動化 Kubernetes 中的 DNS 管理:使用 ExternalDNS

ExternalDNS 是一個第三方的開源工具,專為 Kubernetes 集群的 DNS 記錄管理自動化而設計。它與 Kubernetes 無縫集成,能根據集群的變更動態更新 DNS 記錄,從而實現服務、API 和應用的自動化公開。最初,ExternalDNS 是為支持 AWS Route53 和 Google CloudDNS 開發的,現已擴展支持眾多 DNS 提供商,使其成為雲原生環境中多功能的選擇。

ExternalDNS 的關鍵概念

ExternalDNS 通過監控 Kubernetes 資源(如 Service、Ingress 和 Istio Gateway)作為“來源”,這些資源代表網絡端點。它使用 Kubernetes 的控制器模式將這些來源與 DNS 記錄進行匹配,確保記錄與基礎設施變更保持同步。

資源類型

ExternalDNS 的主要資源類型包括: - Service (LoadBalancer 類型):常用於高可用性應用。 - Ingress:根據路由規則管理對服務的訪問。 - 自定義資源 (CRD):擴展 ExternalDNS 與其他 Kubernetes 配置的兼容性。

每種資源都與一個 ExternalDNS 實例相關聯,該實例會根據配置在 DNS 提供商處對這些資源進行同步。

- name: external-dns
  image: //third_party/docker:external_dns
  args:
    - --source=ingress
    - --source=service
主機名註解

ExternalDNS 探測到資源後,需透過主機名(hostname)來識別指向該資源的 DNS 記錄。主機名註解通過指定記錄名稱來實現此功能。

metadata:
  annotations:
    external-dns.alpha.kubernetes.io/hostname: api.example.io

此註解指示 ExternalDNS 創建或更新 api.example.io 為主機名的 DNS 記錄。

DNS 提供商與整合

ExternalDNS 支援多種 DNS 提供商,這使其成為多雲設置中的靈活選擇。DNS 提供商或“整合”允許它在平台(如 AWS Route53、Google CloudDNS 和 Azure DNS)上更新記錄。提供商配置作為 ExternalDNS 容器的參數進行指定:

- name: external-dns
  image: //third_party/docker:external_dns
  args:
    - --provider=aws

ExternalDNS 的策略與註冊表

策略模式

ExternalDNS 的策略定義了它如何與 DNS 提供商交互。可用的策略包括: - 同步 (Sync):支持創建、更新和刪除操作。 - 僅新增或更新 (Upsert-only):僅允許創建和更新,防止意外刪除。 - 僅創建 (Create-only):限制操作僅限於創建新記錄。

使用 upsert-only 策略可確保根據需要創建或更新 DNS 記錄,而不會發生意外刪除:

- name: external-dns
  image: //third_party/docker:external_dns
  args:
    - --policy=upsert-only
註冊表選項

為了維持特定記錄的所有權與控制,ExternalDNS 使用註冊表記錄其所有權。TXT 註冊表 是一個常用選項,會在 ExternalDNS 管理的 DNS 記錄旁邊添加一條 TXT 記錄。該 TXT 記錄可識別所有權,幫助區分手動創建或由其他工具(如 Terraform)創建的記錄。

- name: external-dns
  image: //third_party/docker:external_dns
  args:
    - --registry=txt

ExternalDNS 的控制迴路

ExternalDNS 定期調整 DNS 記錄以匹配資源所定義的目標狀態。此調整通過控制迴路進行,可設置為定期執行或響應特定事件: - 間隔 (Interval):按設定的週期執行,將 DNS 記錄更新為 Kubernetes 物件的當前狀態。 - 事件 (Events):響應特定來源變更觸發更新,提供更快的響應速度。

以下配置設置了 10 分鐘的調整間隔,並啟用了基於事件的更新:

- name: external-dns
  image: //third_party/docker:external_dns
  args:
    - --interval=10m
    - --events

結論

ExternalDNS 是一種強大的工具,可在 Kubernetes 環境中實現 DNS 記錄管理自動化。透過與多個 DNS 提供商的集成以及靈活的策略和註冊表選項,它減少了 DNS 管理的手動負擔,確保記錄與服務端點同步。ExternalDNS 在雲原生設置中是一個寶貴的工具,能自動公開核心服務和 API,並維持運營效率。

如何追尋真正的幸福

大家好!歡迎返到我哋嘅頻道。今日,我哋會分享《幸福之路》呢本書嘅幾個關鍵要點。呢本書係由著名哲學家貝特蘭·羅素寫嘅,佢透過自己嘅經驗和觀察,提供咗一些實用嘅建議,幫助我哋尋找幸福。

首先,羅素指出,許多人之所以唔快樂,係因為佢哋有錯誤嘅世界觀、倫理觀同生活習慣。佢認為,改變呢啲錯誤觀念,就可以令我哋更接近幸福。

第二,羅素強調,過度嘅自我關注會導致不幸福。佢建議我哋要多關心外界事物,雖然呢樣可能會帶嚟痛苦,但呢種痛苦唔會摧毀生活嘅本質,反而會令我哋更充實。

第三,羅素提到,自戀同虛榮心係幸福嘅障礙。適當嘅自尊係必要嘅,但過度嘅虛榮只會令我哋失去對他人嘅興趣,最終導致孤獨和倦怠。

最後,羅素提醒我哋,要追求多方面嘅興趣,同時保持一種節制和和諧嘅生活態度。佢認為,一個幸福嘅人應該對生活充滿熱情,對人和物持有友善嘅態度,並且從事某種意義嘅活動。

通過閱讀《幸福之路》,我哋可以學到點樣通過改變自己嘅觀念和行為,來追求真正嘅幸福。如果你覺得呢個視頻有幫助,請點贊、分享同訂閱我哋嘅頻道。多謝收睇!

挑戰常識,勇敢追求真理

大家好!歡迎返到我哋嘅頻道。今日,我哋會分享《不要被這世界的常識KO》呢本書嘅幾個關鍵要點。呢本書係由李專寫嘅,教我哋點樣唔被傳統嘅常識所束縛,勇敢挑戰現狀,追求真理。

首先,李專強調咗批判性思考嘅重要性。佢提醒我哋,唔好盲目接受社會嘅常識,而係要學會質疑,通過自己嘅思考嚟判斷事物嘅真偽。

第二,書中探討咗如何應對社會壓力同外界嘅質疑。李專指出,要有勇氣去面對反對意見,並且堅持自己嘅信念,唔被他人嘅看法所左右。

第三,李專提供咗一些具體嘅方法,幫助我哋打破思維定式。例如,通過閱讀不同領域嘅書籍,擴展自己嘅視野;或者與不同背景嘅人交流,從中獲取新嘅觀點。

最後,李專強調,唔好畏懼失敗。每次失敗都係一次學習嘅機會,只要我哋能夠從中吸取教訓,就一定可以變得更強大。

通過閱讀《不要被這世界的常識KO》,我哋可以學到點樣挑戰傳統思維,勇敢面對困難,並且從中獲得成長。如果你覺得呢個視頻有幫助,請點贊、分享同訂閱我哋嘅頻道。多謝收睇!

如何應對和克服人格障礙

大家好!歡迎返到我哋嘅頻道。今日,我哋會分享人格障礙:如何應對和克服呢本書嘅幾個關鍵要點。呢本書係由精神科醫生岡田尊司寫嘅,深入探討咗人格障礙嘅問題,並提供咗應對同克服嘅方法。

首先,岡田醫生解釋咗人格障礙嘅定義,係指一種偏頗嘅思考方式同行為模式,導致個人喺家庭同社會生活中出現困難。佢指出,現代社會嘅快速變遷同價值觀嘅變化,令更多人出現人格障礙嘅症狀。

第二,佢強調咗早期家庭環境同成長經歷對人格發展嘅影響。特別係與父母嘅關係同童年嘅創傷,對成人後嘅人格有深遠嘅影響。佢指出,很多人格障礙患者係因為童年時未能獲得足夠嘅安全感同愛,從而導致成年後嘅心理問題。

第三,書中提供咗多種應對人格障礙嘅策略。包括建立安全基地,即在生活中尋找可靠同支持嘅人,幫助患者重建安全感;同時,通過心理治療同自我反思,來修復過去嘅創傷,逐步改變負面嘅思考模式同行為。

最後,岡田醫生提醒我哋,面對人格障礙,唔單止要依賴專業治療,仲需要患者自己嘅努力同堅持。自我反思、積極尋求支持,並且保持耐心,係克服人格障礙嘅關鍵。

通過閱讀《人格障礙:如何應對和克服》,我哋可以更好咁理解人格障礙嘅成因同應對方法,從而幫助自己或身邊嘅人走出困境。如果你覺得呢個視頻有幫助,請點贊、分享同訂閱我哋嘅頻道。多謝收睇!

影響力是你的超能力

大家好!歡迎返到我哋嘅頻道。今日,我哋會分享《Influence Is Your Superpower: How to Get What You Want Without Compromising Who You Are》呢本書嘅幾個關鍵要點。呢本書係由Yale大學教授Zoe Chance寫嘅,揭示咗如何在保持自我嘅同時,運用影響力取得成功。

首先,Zoe強調咗影響力係一門科學。佢利用最新嘅行為研究同真實生活嘅故事,教我哋點樣運用影響力來達到目的,而唔需要妥協自己嘅價值觀。她提出咗幾個關鍵技巧,包括“魔法問題”、“強力傾聽”同“你需要甚麼”嘅問題,幫助我哋在不同情境中運用影響力。

第二,書中介紹咗如何運用影響力嚟達成正面嘅結果。例如,在商業談判中,你可以通過建立共鳴同理解對方需求,來達成雙贏嘅結果。Zoe指出,影響力唔係控制他人,而係與他人合作,共同實現目標。

第三,Zoe提醒我哋,要防範那些唔道德嘅影響力技巧。佢教我哋如何辨識並抵抗那些試圖操控我哋嘅人或機構,保持自身嘅正直同價值觀。

最後,Zoe強調,影響力係一種超能力,可以用嚟創造更美好嘅世界。只要我哋善用影響力,唔單止可以達成個人目標,仲可以為周圍嘅人帶嚟積極嘅變化。

通過閱讀《Influence Is Your Superpower》,我哋可以學到點樣運用影響力來實現我哋嘅目標,並且保持我哋嘅價值觀同誠信。如果你覺得呢個視頻有幫助,請點贊、分享同訂閱我哋嘅頻道。多謝收睇!

重新思考正向思考的力量

大家好!歡迎返到我哋嘅頻道。今日,我哋會分享《Rethinking Positive Thinking: Inside the New Science of Motivation》呢本書嘅幾個關鍵要點。呢本書係由Gabriele Oettingen寫嘅,揭示咗點樣重新思考正向思考,從而更有效咁實現我哋嘅目標。

首先,Oettingen提出咗“心智對比法”(mental contrasting)。呢個方法結合咗正向思考同面對現實障礙,讓我哋喺夢想同現實之間找到平衡。單單幻想美好嘅未來反而會減少我哋嘅動力,但如果我哋同時考慮實現目標嘅障礙,會令我哋更有動力去行動。

第二,Oettingen介紹咗一個四步驟嘅計劃方法,叫做WOOP,分別係Wish(願望)、Outcome(結果)、Obstacle(障礙)同Plan(計劃)。呢個方法幫助我哋具體化我哋嘅目標,並制定應對障礙嘅具體計劃。

第三,呢本書亦討論咗心智對比法喺健康、人際關係同工作表現等方面嘅應用。通過呢個方法,研究顯示人們更容易戒煙、減肥、取得更好嘅學業成績,並且提升職場表現。

最後,Oettingen強調,僅僅依靠正向思考並唔夠。現實中嘅障礙反而可以成為我哋實現夢想嘅推動力。只要我哋能夠正視這些障礙,並制定有效嘅計劃,我哋就能夠更好咁實現自己嘅目標。

通過閱讀《Rethinking Positive Thinking》,我哋可以學到點樣通過現實同夢想嘅結合,從而提升我哋嘅動力,同實現人生中嘅各種目標。如果你覺得呢個視頻有幫助,請點贊、分享同訂閱我哋嘅頻道。多謝收睇!

Overcoming Fear - My Journey Through Storytelling and Building Confidence

Yes, I was extremely nervous. My heart raced, my stomach churned with anxiety, and the emergency exit door beside me seemed like a beacon of escape. "It’s not too late to leave now," I thought. Although I had accumulated public speaking experiences over the years, standing before two hundred people who had been drinking and expected to be entertained with stories was different. My mind raced with thoughts of failure—blank stares, silent rejection, boos, and even the possibility of having drinks thrown at me. The pressure was immense.

It was my mentor who first inspired me to sign up for a storytelling course. He took the plunge in his seventies and found it exhilarating, claiming it could also benefit my career. At the time, I was working in sales, and he wisely said, "Everyone likes a good storyteller. The more people connect with your stories, the more you can sell!" I didn’t plan on switching careers to storytelling, but I felt stuck in the comfort zone of my life and wanted to challenge myself. I believed that pushing these boundaries would improve my emotional resilience. So, I debated between taking a storytelling course and skydiving. Now, I wished I had chosen skydiving.

The moment arrived. The host's voice boomed through the room: "Please welcome our next storyteller, Victor Leung!" I stepped out, grabbed the microphone, and launched into my six-minute story. Most of my material was about my family. I opened with, "My cooking skills are so bad that last week I made egg fried rice, and even the eggs complained about their fate. They said, 'We thought we were going to be omelets, not hostages in this disaster.'" It was a silly, light-hearted joke, but some people chuckled. Those few chuckles gave me enough confidence to keep going, delivering more engaging stories and eliciting more reactions. In the end, the performance was a success. None of the nightmarish scenarios I imagined came true. It was actually fun and thrilling, an experience that left me brimming with adrenaline and newfound confidence.

From that night on, I continued storytelling, gradually gaining confidence, even though not every performance was a hit. There were moments when I bombed, telling the same story in the same way to different audiences with mixed reactions. Sometimes, I encountered hecklers. Once, I was even yanked off stage during an open mic for running over my time. But these worst-case scenarios weren’t as catastrophic as I’d feared. Over time, I learned to observe audience reactions, improve my timing, and interact more naturally. I even discovered how to measure success with "LPM" (laughs per minute), a metric I'd never known existed. I found that tougher crowds honed my skills more than easy audiences, and those so-called "bad" nights paved the way for the "good" ones. All of this expanded my comfort zone, and the confidence I built carried over into all areas of my life.

To take control of our lives, we first need to take control of ourselves, and confidence is key to achieving this. True, sincere confidence—not arrogance—is the fuel that propels us through challenges. It empowers us to interact healthily with others, take risks, and seize opportunities. Confidence is one of the most important pillars for a fulfilling life, whereas the opposite—living in fear, doubt, insecurity, and worry—can be destructive.

How do we build confidence and bridge the gap between who we are and who we want to be? Two factors play crucial roles: self-efficacy and self-worth.

Self-efficacy is the belief that we can accomplish a task, directly influencing our ability to meet our goals. People with high self-efficacy view challenges as opportunities rather than threats because they trust in their abilities and resilience. Even if they fall short, they know the journey will help them grow and improve.

For me, stepping on that stage for the first time was about building self-efficacy. It was a testament to embracing discomfort, facing fears head-on, and learning from both victories and failures. The journey to confidence isn't linear or easy, but it's one worth taking—for your career, your relationships, and your overall well-being.

If you’re interested in hearing my storytelling and public speaking, check out this YouTube video:

Trial and Error | Love and Loss