我正在尝试与docker部署堆栈。
这是我的堆栈的工作方式：
这是我的docker-compose.yml：
let messageLabel: UILabel = {
let label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.numberOfLines = 0
label.font = UIFont.systemFont(ofSize: 14, weight: UIFont.Weight.regular)
label.isUserInteractionEnabled = true
return label
}()
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
self.addSubview(messageLabel)
// setup messageLabel constraints
let tapGesture = UITapGestureRecognizer(target: self, action: #selector(tapLabel))
messageLabel.addGestureRecognizer(tapGesture)
}
//function to get attributed string with url
func getAttributedString(input : String) -> NSMutableAttributedString {
let matches = getURLRange(input: input)
let attributedString = NSMutableAttributedString(string:input)
for match in matches {
let url = (input as NSString).substring(with: match.range)
let linkText = NSMutableAttributedString(string:url, attributes:[NSAttributedString.Key(rawValue: NSAttributedString.Key.foregroundColor.rawValue) : UIColor.appleBlue()])
attributedString.replaceCharacters(in: match.range, with: linkText)
}
return attributedString
}
func getURLRange(input : String) -> [NSTextCheckingResult] {
let detector = try! NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue)
let matches = detector.matches(in: input, options: [], range: NSRange(location: 0, length: input.utf16.count))
return matches
}
//function to get index Of selected Character in string
func didTapAttributedTextInLabel(label: UILabel, tapLocation: CGPoint) -> Int {
//here myLabel is the object of UILabel
//added this from @warly's answer
//set font of attributedText
let attributedText = NSMutableAttributedString(attributedString: messageLabel.attributedText!)
attributedText.addAttributes([NSAttributedString.Key.font: messageLabel.font], range: NSMakeRange(0, (messageLabel.attributedText?.string.count)!))
// Create instances of NSLayoutManager, NSTextContainer and NSTextStorage
let layoutManager = NSLayoutManager()
let textContainer = NSTextContainer(size: CGSize(width: messageLabel.frame.width, height: messageLabel.frame.height+100))
let textStorage = NSTextStorage(attributedString: attributedText)
// Configure layoutManager and textStorage
layoutManager.addTextContainer(textContainer)
textStorage.addLayoutManager(layoutManager)
// Configure textContainer
textContainer.lineFragmentPadding = 0.0
textContainer.lineBreakMode = messageLabel.lineBreakMode
textContainer.maximumNumberOfLines = messageLabel.numberOfLines
let labelSize = messageLabel.bounds.size
textContainer.size = labelSize
// get the index of character where user tapped
let indexOfCharacter = layoutManager.characterIndex(for: tapLocation, in: textContainer, fractionOfDistanceBetweenInsertionPoints: nil)
return indexOfCharacter
}
// function to check if URL is taped
@objc func tapLabel(gesture: UITapGestureRecognizer) {
let matches = getURLRange(input: (messageLabel.text)!)
let tapLocation = gesture.location(in: messageLabel)
let indexOfCharacter = didTapAttributedTextInLabel(label: messageLabel, tapLocation: tapLocation)
for match in matches {
if NSLocationInRange(indexOfCharacter, match.range) {
//open selected URL
let mainText = messageLabel.text as NSString?
if let urlToOpen = URL(string: (mainText?.substring(with: match.range))!) {
UIApplication.shared.open(urlToOpen)
} else {
print("We have error with URL")
}
break
} else {
print("Tapped none")
}
}
}
当我使用 docker-compose up 时，一切正常。 但是，当我尝试使用 docker stack进行部署时，请部署--compose-file = docker-compose.yml产品。我的Nginx配置文件找不到其他的上游。
这是我的服务 nginx-api 提供的错误：
version: '3.2'
services:
website:
container_name: nyl2pronos-website
image: nyl2pronos-website
restart: always
build:
context: nyl2pronos_webapp
dockerfile: Dockerfile
volumes:
- ./logs/nginx-website:/var/log/nginx
expose:
- "80"
deploy:
replicas: 10
update_config:
parallelism: 5
delay: 10s
api:
container_name: nyl2pronos-api
build:
context: nyl2pronos_api
dockerfile: Dockerfile
image: nyl2pronos-api
restart: always
ports:
- 8001:80
expose:
- "80"
depends_on:
- db
- memcached
environment:
- DJANGO_PRODUCTION=1
volumes:
- ./data/api/uploads:/code/uploads
- ./data/api/static:/code/static
nginx-api:
image: nginx:latest
container_name: nyl2pronos-nginx-api
restart: always
expose:
- "80"
volumes:
- ./data/api/uploads:/uploads
- ./data/api/static:/static
- ./nyl2pronos_api/config:/etc/nginx/conf.d
- ./logs/nginx-api:/var/log/nginx
depends_on:
- api
nginx-proxy:
image: nginx:latest
container_name: nyl2pronos-proxy
restart: always
ports:
- 80:80
- 443:443
volumes:
- ./proxy:/etc/nginx/conf.d
- /etc/letsencrypt:/etc/letsencrypt
- ./logs/nginx-proxy:/var/log/nginx
deploy:
placement:
constraints: [node.role == manager]
depends_on:
- nginx-api
- website
请参阅下面的 nginx.conf ：
2019/03/23 17:32:41 [emerg] 1#1: host not found in upstream "api" in /etc/nginx/conf.d/nginx.conf:2
如果您发现我的配置有问题或可以做得更好，请告诉我！
答案 0 :(得分：0)
之所以会这样，是因为nginx-api服务先于api服务。
但是我添加了depends_on选项吗？
您是对的，此选项应适用于docker-compose up情况。
但不幸的是不在docker stack deploy上，或者像docs所说的那样：
在集群模式下部署堆栈时，depends_on选项将被忽略 带有第3版Compose文件。
好，那我现在该怎么办？
什么都没有。它实际上不是错误-
docker swarm节点（您的堆栈服务）应该在发生错误时自动恢复。 （这就是为什么您定义restart: always选项的原因）。所以无论如何它应该对您有用。
如果仅将compose文件用于部署堆栈，而不是在docker-compose up上使用-您可以完全删除depends_on选项，这对docker堆栈没有任何意义。