Shell, container và tính đúng đắn khi triển khai

Nội dung luyện tập

• shell zero exit not log text
• shell pipe stdout not stderr
• image tag mutable reference
• build once promote artifact
• bash pipefail rightmost failure
• bash export child environment
• bash quoted argument boundary
• bash subshell variable isolation
• docker cache dependency copy order
• container writable layer not durable store
• docker build secret not arg env
• container platform architecture contract
• workflow cancellation not deploy transaction
• deployment progress deadline no auto rollback
• docker shell entrypoint signal forwarding
• docker log retention host disk
• pod termination drain grace budget
• release health build identity check
• reproducible build input closure
• bash exit trap preserves failure

Mỗi câu đúng 1 điểm. Mục tiêu 70%. Đáp án và giải thích mở sau khi nộp bài.