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Volume binary option

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WebCompose specification. The Compose file is a YAML file defining services, networks, and volumes for a Docker application. The latest and recommended version of the Compose file format is defined by the Compose Compose spec merges the legacy 2.x and 3.x versions, aggregating properties across these formats and is implemented by WebApple Footer The following purchases with Apple Card are ineligible to earn 5% back: monthly financing through Apple Card Monthly Installments, Apple iPhone Payments, the iPhone Upgrade Program, and wireless carrier financing plans; Apple Media Services; AppleCare+ monthly payments. Subject to credit approval. Valid only on qualifying WebA binary option is a financial exotic option in which the payoff is either some fixed monetary amount or nothing at all. The two main types of binary options are the cash-or-nothing binary option and the asset-or-nothing binary option. The former pays some fixed amount of cash if the option expires in-the-money while the latter pays the value of the Web原创 Python量化交易实战教程汇总. B站配套视频教程观看设计适合自己并能适应市场的交易策略,才是量化交易的灵魂课程亲手带你设计并实现两种交易策略,快速培养你的策略思维能力择时策略:通过这个策略学会如何利用均线,创建择时策略,优化股票买入卖出的时间点。 WebFor systems that have recent aufs version (i.e., dirperm1 mount option can be set), docker will attempt to fix the issue automatically by mounting the layers with dirperm1 option. , but this can only set the binary to exec (no sh -c will be used). Note. Changing the volume from within the Dockerfile ... read more

Lines beginning with MUST be ignored. Blank lines MUST also be ignored. The value of VAL is used as a raw string and not modified at all. If the value is surrounded by quotes as is often the case for shell variables , the quotes MUST be included in the value passed to containers created by the Compose implementation.

VAL MAY be omitted, in such cases the variable value is empty string. environment defines environment variables set in the container. environment can use either an array or a map. Any boolean values; true, false, yes, no, SHOULD be enclosed in quotes to ensure they are not converted to True or False by the YAML parser. Environment variables MAY be declared by a single key no value to equals sign. In such a case Compose implementations SHOULD rely on some user interaction to resolve the value.

If they do not, the variable is unset and will be removed from the service container environment. expose defines the ports that Compose implementations MUST expose from container. These ports MUST be accessible to linked services and SHOULD NOT be published to the host machine. Only the internal container ports can be specified. Extend another service, in the current file or another, optionally overriding configuration.

You can use extends on any service together with other configuration keys. The extends value MUST be a mapping defined with a required service and an optional file key. If supported Compose implementations MUST process extends in the following way:. Service denoted by service MUST be present in the identified referenced Compose file. Compose implementations MUST return an error if:. Two service definitions main one in the current Compose file and referenced one specified by extends MUST be merged in the following way:.

The following keys should be treated as mappings: build. args , build. labels , build. labels , deploy. limits , environment , healthcheck , labels , logging. One exception that applies to healthcheck is that main mapping cannot specify disable: true unless referenced mapping also specifies disable: true. Compose implementations MUST return an error in this case. Produces the following configuration for the cli service. The same output is produced if array syntax is used. Note that mounted path now points to the new volume name and ro flag was applied.

If referenced service definition contains extends mapping, the items under it are simply copied into the new merged definition. Merging process is then kicked off again until no extends keys are remaining. Here, cli services gets user key from common service, which in turn gets this key from base service.

constraints , deploy. preferences , deploy. Any duplicates resulting from the merge are removed so that the sequence only contains unique elements. Unlike sequence fields mentioned above, duplicates resulting from the merge are not removed.

An alias of the form SERVICE:ALIAS can be specified. Values MUST set hostname and IP address for additional hosts in the form of HOSTNAME:IP. An example of where this is useful is when multiple containers running as different users need to all read or write the same file on a shared volume. test defines the command the Compose implementation will run to check container health. It can be either a string or a list. Both forms below are equivalent:.

NONE disable the healthcheck, and is mostly useful to disable Healthcheck set by image. Alternatively the healthcheck set by the image can be disabled by setting disable: true :. hostname declares a custom host name to use for the service container. image specifies the image to start the container from.

Compose implementations with build support MAY offer alternative options for the end user to control precedence of pull over building the image from source, however pulling the image MUST be the default behavior. image MAY be omitted from a Compose file as long as a build section is declared. Compose implementations without build support MUST fail when image is missing from the Compose file. init run an init process PID 1 inside the container that forwards signals and reaps processes.

Set this option to true to enable this feature for the service. ipc configures the IPC isolation mode set by service container. Available values are platform specific, but Compose specification defines specific values which MUST be implemented as described if supported:. Supported values are platform-specific. labels add metadata to containers.

You can use either an array or a map. The com. compose label prefix is reserved. Specifying labels with this prefix in the Compose file MUST result in a runtime error. links defines a network link to containers in another service. Either specify both the service name and a link alias SERVICE:ALIAS , or just the service name. Containers for the linked service MUST be reachable at a hostname identical to the alias, or the service name if no alias was specified.

If services do declare networks they are attached to, links SHOULD NOT override the network configuration and services not attached to a shared network SHOULD NOT be able to communicate. Compose implementations MAY NOT warn the user about this configuration mismatch. logging defines the logging configuration for the service. The default and available values are platform specific. Driver specific options can be set with options as key-value pairs.

This is a modifier attribute that only has meaning if memory is also set. Using swap allows the container to write excess memory requirements to disk when the container has exhausted all the memory that is available to it. There is a performance penalty for applications that swap memory to disk often. Available values are platform specific, but Compose specification define specific values which MUST be implemented as described if supported:.

networks defines the networks that service containers are attached to, referencing entries under the top-level networks key. aliases declares alternative hostnames for this service on the network. Since aliases are network-scoped, the same service can have different aliases on different networks. Note : A network-wide alias can be shared by multiple containers, and even by multiple services.

If it is, then exactly which container the name resolves to is not guaranteed. In the example below, service frontend will be able to reach the backend service at the hostname backend or database on the back-tier network, and service monitoring will be able to reach same backend service at db or mysql on the admin network. The corresponding network configuration in the top-level networks section MUST have an ipam block with subnet configurations covering each static address.

Link-local IPs are special IPs which belong to a well known subnet and are purely managed by the operator, usually dependent on the architecture where they are deployed. Implementation is Platform specific.

If unspecified, the default value is 0. Value MUST be within [,] range. pid sets the PID mode for container created by the Compose implementation. Supported values are platform specific.

Set to -1 for unlimited PIDs. Exposes container ports. The short syntax is a colon-separated string to set host IP, host port and container port in the form:. Host IP, if not set, MUST bind to all network interfaces. Port can be either a single value or a range. Host and container MUST use equivalent ranges. Either specify both ports HOST:CONTAINER , or just the container port.

In the latter case, the Compose implementation SHOULD automatically allocate any unassigned host port. HOST:CONTAINER SHOULD always be specified as a quoted string, to avoid conflicts with yaml base float.

Note : Host IP mapping MAY not be supported on the platform, in such case Compose implementations SHOULD reject the Compose file and MUST inform the user they will ignore the specified host IP.

privileged configures the service container to run with elevated privileges. Support and actual impacts are platform-specific. profiles defines a list of named profiles for the service to be enabled under.

When not set, service is always enabled. Possible values are:. Compose implementations MAY override this behavior in the toolchain.

restart defines the policy that the platform will apply on container termination. The value of runtime is specific to implementation.

scale specifies the default number of containers to deploy for this service. secrets grants access to sensitive data defined by secrets on a per-service basis. Two different syntax variants are supported: the short syntax and the long syntax. The short syntax variant only specifies the secret name. The source name and destination mountpoint are both set to the secret name.

The following example uses the short syntax to grant the frontend service access to the server-certificate secret. The value of server-certificate is set to the contents of the file. The following example sets the name of the server-certificate secret file to server.

cert within the container, sets the mode to group-readable and sets the user and group to The value of server-certificate secret is provided by the platform through a lookup and the secret lifecycle is not directly managed by the Compose implementation. Services MAY be granted access to multiple secrets.

Long and short syntax for secrets MAY be used in the same Compose file. Defining a secret in the top-level secrets MUST NOT imply granting any service access to it. Such grant must be explicit within service specification as secrets service element.

Specified as a byte value. Specified as a duration. If unset containers are stopped by the Compose Implementation by sending SIGTERM. sysctls defines kernel parameters to set in the container. sysctls can use either an array or a map. You can only use sysctls that are namespaced in the kernel.

Docker does not support changing sysctls inside a container that also modify the host system. For an overview of supported sysctls, refer to configure namespaced kernel parameters sysctls at runtime. tmpfs mounts a temporary file system inside the container. tty configure service container to run with a TTY.

ulimits overrides the default ulimits for a container. user overrides the user used to run the container process. Default is that set by image i. Dockerfile USER , if not set, root. Supported values are platform specific and MAY depend on platform configuration. volumes defines mount host paths or named volumes that MUST be accessible by service containers. If the mount is a host path and only used by a single service, it MAY be declared as part of the service definition instead of the top-level volumes key.

To reuse a volume across multiple services, a named volume MUST be declared in the top-level volumes key. This example shows a named volume db-data being used by the backend service, and a bind mount defined for a single service. Note : The SELinux re-labeling bind mount option is ignored on platforms without SELinux. Note : Relative host paths MUST only be supported by Compose implementations that deploy to a local container runtime.

Compose Implementations deploying to a non-local platform MUST reject Compose files which use relative host paths with an error. To avoid ambiguities with named volumes, relative paths SHOULD always begin with. If no access level is specified, then read-write MUST be used.

String value defines another service in the Compose application model to mount volumes from. The container: prefix, if supported, allows to mount volumes from a container that is not managed by the Compose implementation. Dockerfile WORKDIR. Networks are the layer that allow services to communicate with each other. The networking model exposed to a service is limited to a simple IP connection with target services and external resources, while the Network definition allows fine-tuning the actual implementation provided by the platform.

Networks can be created by specifying the network name under a top-level networks section. Services can connect to networks by specifying the network name under the service networks subsection. In the following example, at runtime, networks front-tier and back-tier will be created and the frontend service connected to the front-tier network and the back-tier network.

driver specifies which driver should be used for this network. Compose implementations MUST return an error if the driver is not available on the platform. Default and available values are platform specific. Compose specification MUST support the following specific drivers: none and host. The syntax for using built-in networks such as host and none is different, as such networks implicitly exists outside the scope of the Compose implementation.

To use them one MUST define an external network with the name host or none and an alias that the Compose implementation can use hostnet or nonet in the following examples , then grant the service access to that network using its alias.

If attachable is set to true , then standalone containers SHOULD be able attach to this network, in addition to services. If a standalone container attaches to the network, it can communicate with services and other standalone containers that are also attached to the network.

ipam specifies custom a IPAM configuration. This is an object with several properties, each of which is optional:. By default, Compose implementations MUST provides external connectivity to networks. internal when set to true allow to create an externally isolated network. Users SHOULD use reverse-DNS notation to prevent labels from conflicting with those used by other software.

Compose implementations MUST set com. project and com. network labels. If external is set to true , then the resource is not managed by Compose. If external is set to true and the network configuration has other attributes set besides name , then Compose Implementations SHOULD reject the Compose file as invalid. In the example below, proxy is the gateway to the outside world.

name sets a custom name for this network. The name field can be used to reference networks which contain special characters. The name is used as is and will not be scoped with the project name. Volumes are persistent data stores implemented by the platform. The Compose specification offers a neutral abstraction for services to mount volumes, and configuration parameters to allocate them on infrastructure.

The volumes section allows the configuration of named volumes that can be reused across multiple services. Optionally, you can configure it with the following keys:. Specify which volume driver should be used for this volume. If the driver is not available, the Compose implementation MUST return an error and stop application deployment. Those options are driver-dependent. If set to true , external specifies that this volume already exist on the platform and its lifecycle is managed outside of that of the application.

Compose implementations MUST NOT attempt to create these volumes, and MUST return an error if they do not exist. labels are used to add metadata to volumes. You can use either an array or a dictionary. Compose implementation MUST set com. volume labels. name set a custom name for this volume. The name field can be used to reference volumes that contain special characters. The name is used as is and will not be scoped with the stack name. It can also be used in conjunction with the external property.

Doing so the name of the volume used to lookup for actual volume on platform is set separately from the name used to refer to it within the Compose file:. This makes it possible to make this lookup name a parameter of a Compose file, so that the model ID for volume is hard-coded but the actual volume ID on platform is set at runtime during deployment:.

Configs allow services to adapt their behaviour without the need to rebuild a Docker image. The actual implementation detail to get configuration provided by the platform can be set from the Configuration definition. When granted access to a config, the config content is mounted as a file in the container.

By default, the config MUST be owned by the user running the container command but can be overridden by service configuration. By default, the config MUST have world-readable permissions mode , unless service is configured to override this.

Services can only access configs when explicitly granted by a configs subsection. The top-level configs declaration defines or references configuration data that can be granted to the services in this application. The source of the config is either file or external. conf as configuration data. External configs lookup can also use a distinct key by specifying a name. Compose file need to explicitly grant access to the configs to relevant services in the application.

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Docker runs processes in isolated containers. A container is a process which runs on a host. The host may be local or remote. When an operator executes docker run , the container process that runs is isolated in that it has its own file system, its own networking, and its own isolated process tree separate from the host. The basic docker run command takes this form:.

The docker run command must specify an IMAGE to derive the container from. An image developer can define image defaults related to:. With the docker run [OPTIONS] an operator can add to or override the image defaults set by a developer. And, additionally, operators can override nearly all the defaults set by the Docker runtime itself.

To learn how to interpret the types of [OPTIONS] , see Option types. Depending on your Docker system configuration, you may be required to preface the docker run command with sudo. To avoid having to use sudo with the docker command, your system administrator can create a Unix group called docker and add users to it. For more information about this configuration, refer to the Docker installation documentation for your operating system.

Only the operator the person executing docker run can set the following options. By design, containers started in detached mode exit when the root process used to run the container exits, unless you also specify the --rm option. If you use -d with --rm , the container is removed when it exits or when the daemon exits, whichever happens first. Do not pass a service x start command to a detached container. For example, this command attempts to start the nginx service. This succeeds in starting the nginx service inside the container.

However, it fails the detached container paradigm in that, the root process service nginx start returns and the detached container stops as designed. As a result, the nginx service is started but could not be used. Instead, to start a process such as the nginx web server do the following:. These are required because the container is no longer listening to the command line where docker run was run. To reattach to a detached container, use docker attach command. It can even pretend to be a TTY this is what most command line executables expect and pass along signals.

All of that is configurable:. If you do not specify -a then Docker will attach to both stdout and stderr. For interactive processes like a shell , you must use -i -t together in order to allocate a tty for the container process. Specifying -t is forbidden when the client is receiving its standard input from a pipe, as in:.

A process running as PID 1 inside a container is treated specially by Linux: it ignores any signal with the default action. As a result, the process will not terminate on SIGINT or SIGTERM unless it is coded to do so. The UUID identifiers come from the Docker daemon. If you do not assign a container name with the --name option, then the daemon generates a random string name for you. Defining a name can be a handy way to add meaning to a container. If you specify a name , you can use it when referencing the container within a Docker network.

This works for both background and foreground Docker containers. Finally, to help with automation, you can have Docker write the container ID out to a file of your choosing.

For example, docker run ubuntu Images using the v2 or later image format have a content-addressable identifier called a digest. As long as the input used to generate the image is unchanged, the digest value is predictable and referenceable. The following example runs a container from the alpine image with the shacacbbecacfae4ee9f96cbfda95e0 digest:. PID namespace provides separation of processes. The PID Namespace removes the view of the system processes, and allows process ids to be reused including pid 1.

For example, you could build a container with debugging tools like strace or gdb , but want to use these tools when debugging processes within the container. Build the Dockerfile and tag the image as myhtop :. Use the following command to run htop inside a container:.

The UTS namespace is for setting the hostname and the domain that is visible to running processes in that namespace. The host setting will result in the container using the same UTS namespace as the host. Note that --hostname and --domainname are invalid in host UTS mode. You may wish to share the UTS namespace with the host if you would like the hostname of the container to change as the hostname of the host changes. If not specified, daemon default is used, which can either be "private" or "shareable" , depending on the daemon version and configuration.

Shared memory segments are used to accelerate inter-process communication at memory speed, rather than through pipes or through the network stack. If these types of applications are broken into multiple containers, you might need to share the IPC mechanisms of the containers, using "shareable" mode for the main i.

By default, all containers have networking enabled and they can make any outgoing connections. The operator can completely disable networking with docker run --network none which disables all incoming and outgoing networking.

Publishing ports and linking to other containers only works with the default bridge. The linking feature is a legacy feature. You should always prefer using Docker network drivers over linking. Your container will use the same DNS servers as the host by default, but you can override this with --dns.

By default, the MAC address is generated using the IP address allocated to the container. Be aware that Docker does not check if manually specified MAC addresses are unique.

With the network is none a container will not have access to any external routes. The container will still have a loopback interface enabled in the container but it does not have any routes to external traffic. A bridge is setup on the host, commonly named docker0 , and a pair of veth interfaces will be created for the container.

Containers can communicate via their IP addresses by default. To communicate by name, they must be linked. Note that --mac-address is invalid in host netmode. Even in host network mode a container has its own UTS namespace by default. As such --hostname and --domainname are allowed in host network mode and will only change the hostname and domain name inside the container. Similar to --hostname , the --add-host , --dns , --dns-search , and --dns-option options can be used in host network mode.

conf inside the container. conf on the host. It is recommended to run containers in this mode when their networking performance is critical, for example, a production Load Balancer or a High Performance Web Server. With the network set to container a container will share the network stack of another container.

Note that --add-host --hostname --dns --dns-search --dns-option and --mac-address are invalid in container netmode, and --publish --publish-all --expose are also invalid in container netmode.

Example running a Redis container with Redis binding to localhost then running the redis-cli command and connecting to the Redis server over the localhost interface. You can create a network using a Docker network driver or an external network driver plugin.

You can connect multiple containers to the same network. For overlay networks or custom plugins that support multi-host connectivity, containers connected to the same multi-host network but launched from different Engines can also communicate in this way. The following example creates a network using the built-in bridge network driver and running a container in the created network.

In most cases, retrying the read again should fix the problem. Using the --restart flag on Docker run you can specify a restart policy for how a container should or should not be restarted on exit. When a restart policy is active on a container, it will be shown as either Up or Restarting in docker ps. It can also be useful to use docker events to see the restart policy in effect.

An increasing delay double the previous delay, starting at milliseconds is added before each restart to prevent flooding the server. This means the daemon will wait for ms, then ms, , , , and so on until either the on-failure limit, the maximum delay of 1 minute is hit, or when you docker stop or docker rm -f the container.

If a container is successfully restarted the container is started and runs for at least 10 seconds , the delay is reset to its default value of ms. You can specify the maximum amount of times Docker will try to restart the container when using the on-failure policy. The default is that Docker will try forever to restart the container.

The number of attempted restarts for a container can be obtained via docker inspect. Combining --restart restart policy with the --rm clean up flag results in an error. On container restart, attached clients are disconnected. See the examples on using the --rm clean up flag later in this page. This will run the redis container with a restart policy of always so that if the container exits, Docker will restart it.

This will run the redis container with a restart policy of on-failure and a maximum restart count of If the redis container exits with a non-zero exit status more than 10 times in a row Docker will abort trying to restart the container. Providing a maximum restart limit is only valid for the on-failure policy. The exit code from docker run gives information about why the container failed to run or why it exited. When docker run exits with a non-zero code, the exit codes follow the chroot standard, see below:.

Dockerfile reference,Select Your Region

WebGenerally however, a binary option is used for short term trading – usually under 30 minutes (5 minutes are the most popular). Longer term expiries – and the element of fixed risk – does make them useful tools for hedging or diversifying other holdings. or increased income revenue and profits based on the trade volume they generate Web原创 Python量化交易实战教程汇总. B站配套视频教程观看设计适合自己并能适应市场的交易策略,才是量化交易的灵魂课程亲手带你设计并实现两种交易策略,快速培养你的策略思维能力择时策略:通过这个策略学会如何利用均线,创建择时策略,优化股票买入卖出的时间点。 WebCompose specification. The Compose file is a YAML file defining services, networks, and volumes for a Docker application. The latest and recommended version of the Compose file format is defined by the Compose Compose spec merges the legacy 2.x and 3.x versions, aggregating properties across these formats and is implemented by WebGet the resources, documentation and tools you need for the design, development and engineering of Intel® based hardware solutions WebA binary option is a financial exotic option in which the payoff is either some fixed monetary amount or nothing at all. The two main types of binary options are the cash-or-nothing binary option and the asset-or-nothing binary option. The former pays some fixed amount of cash if the option expires in-the-money while the latter pays the value of the WebApple Footer The following purchases with Apple Card are ineligible to earn 5% back: monthly financing through Apple Card Monthly Installments, Apple iPhone Payments, the iPhone Upgrade Program, and wireless carrier financing plans; Apple Media Services; AppleCare+ monthly payments. Subject to credit approval. Valid only on qualifying ... read more

One exception that applies to healthcheck is that main mapping cannot specify disable: true unless referenced mapping also specifies disable: true. Safari Chrome Edge Firefox. If set to true , the instruction errors out when the key is unavailable. 那有没有好的办法解决这个问题呢?方法当然有,首先我们需要知道哪里可以下载到不同版本的文件。这里推荐两个网站,国内首选淘宝的镜像仓库:数据更新会比谷歌官方稍慢;可供下载的版本有时不全; The container will also always start on daemon startup, regardless of the current state of the container. To use them one MUST define an external network with the name host or none and an alias that the Compose implementation can use hostnet or nonet in the following examples , then grant the service access to that network using its alias. environment defines environment variables set in the container.

exception patterns. Finally, volume binary option, you may want to specify which files to include in the context, rather than which to exclude. Only the internal container ports can be specified. This succeeds in starting the nginx service inside the container. yml for backward compatibility.