github.com/naphatkrit/deis@v1.12.3/client/cmd/limits.go (about)

     1  package cmd
     2  
     3  import (
     4  	"fmt"
     5  	"regexp"
     6  	"strconv"
     7  
     8  	"github.com/deis/deis/pkg/prettyprint"
     9  
    10  	"github.com/deis/deis/client/controller/api"
    11  	"github.com/deis/deis/client/controller/models/config"
    12  )
    13  
    14  // LimitsList lists an app's limits.
    15  func LimitsList(appID string) error {
    16  	c, appID, err := load(appID)
    17  
    18  	if err != nil {
    19  		return err
    20  	}
    21  
    22  	config, err := config.List(c, appID)
    23  
    24  	fmt.Printf("=== %s Limits\n\n", appID)
    25  
    26  	fmt.Println("--- Memory")
    27  	if len(config.Memory) == 0 {
    28  		fmt.Println("Unlimited")
    29  	} else {
    30  		memoryMap := make(map[string]string)
    31  
    32  		for key, value := range config.Memory {
    33  			memoryMap[key] = fmt.Sprintf("%v", value)
    34  		}
    35  
    36  		fmt.Print(prettyprint.PrettyTabs(memoryMap, 5))
    37  	}
    38  
    39  	fmt.Println("\n--- CPU")
    40  	if len(config.CPU) == 0 {
    41  		fmt.Println("Unlimited")
    42  	} else {
    43  		cpuMap := make(map[string]string)
    44  
    45  		for key, value := range config.CPU {
    46  			cpuMap[key] = strconv.Itoa(int(value.(float64)))
    47  		}
    48  
    49  		fmt.Print(prettyprint.PrettyTabs(cpuMap, 5))
    50  	}
    51  
    52  	return nil
    53  }
    54  
    55  // LimitsSet sets an app's limits.
    56  func LimitsSet(appID string, limits []string, limitType string) error {
    57  	c, appID, err := load(appID)
    58  
    59  	if err != nil {
    60  		return err
    61  	}
    62  
    63  	limitsMap := parseLimits(limits)
    64  
    65  	fmt.Print("Applying limits... ")
    66  
    67  	quit := progress()
    68  	configObj := api.Config{}
    69  
    70  	if limitType == "cpu" {
    71  		configObj.CPU = limitsMap
    72  	} else {
    73  		configObj.Memory = limitsMap
    74  	}
    75  
    76  	_, err = config.Set(c, appID, configObj)
    77  
    78  	quit <- true
    79  	<-quit
    80  
    81  	if err != nil {
    82  		return err
    83  	}
    84  
    85  	fmt.Print("done\n\n")
    86  
    87  	return LimitsList(appID)
    88  }
    89  
    90  // LimitsUnset removes an app's limits.
    91  func LimitsUnset(appID string, limits []string, limitType string) error {
    92  	c, appID, err := load(appID)
    93  
    94  	if err != nil {
    95  		return err
    96  	}
    97  
    98  	fmt.Print("Applying limits... ")
    99  
   100  	quit := progress()
   101  
   102  	configObj := api.Config{}
   103  
   104  	valuesMap := make(map[string]interface{})
   105  
   106  	for _, limit := range limits {
   107  		valuesMap[limit] = nil
   108  	}
   109  
   110  	if limitType == "cpu" {
   111  		configObj.CPU = valuesMap
   112  	} else {
   113  		configObj.Memory = valuesMap
   114  	}
   115  
   116  	_, err = config.Set(c, appID, configObj)
   117  
   118  	quit <- true
   119  	<-quit
   120  
   121  	if err != nil {
   122  		return err
   123  	}
   124  
   125  	fmt.Print("done\n\n")
   126  
   127  	return LimitsList(appID)
   128  }
   129  
   130  func parseLimits(limits []string) map[string]interface{} {
   131  	limitsMap := make(map[string]interface{})
   132  
   133  	for _, limit := range limits {
   134  		key, value, err := parseLimit(limit)
   135  
   136  		if err != nil {
   137  			fmt.Println(err)
   138  			continue
   139  		}
   140  
   141  		limitsMap[key] = value
   142  	}
   143  
   144  	return limitsMap
   145  }
   146  
   147  func parseLimit(limit string) (string, string, error) {
   148  	regex := regexp.MustCompile("^([A-z]+)=([0-9]+[bkmgBKMG]{1,2}|[0-9]{1,4})$")
   149  
   150  	if !regex.MatchString(limit) {
   151  		return "", "", fmt.Errorf(`%s doesn't fit format type=#unit or type=#
   152  Examples: web=2G worker=500M web=300`, limit)
   153  	}
   154  
   155  	capture := regex.FindStringSubmatch(limit)
   156  
   157  	return capture[1], capture[2], nil
   158  }