portainer/app/components/containerLogs/containerLogsController.js

angular.module('containerLogs', [])
    .controller('ContainerLogsController', ['$scope', '$routeParams', '$location', '$anchorScroll', 'ContainerLogs', 'Container', 'ViewSpinner',
        function ($scope, $routeParams, $location, $anchorScroll, ContainerLogs, Container, ViewSpinner) {
            $scope.stdout = '';
            $scope.stderr = '';
            $scope.showTimestamps = false;
            $scope.tailLines = 2000;

            ViewSpinner.spin();
            Container.get({id: $routeParams.id}, function (d) {
                $scope.container = d;
                ViewSpinner.stop();
            }, function (e) {
                if (e.status === 404) {
                    Messages.error("Not found", "Container not found.");
                } else {
                    Messages.error("Failure", e.data);
                }
                ViewSpinner.stop();
            });

            function getLogs() {
                ViewSpinner.spin();
                ContainerLogs.get($routeParams.id, {
                    stdout: 1,
                    stderr: 0,
                    timestamps: $scope.showTimestamps,
                    tail: $scope.tailLines
                }, function (data, status, headers, config) {
                    // Replace carriage returns with newlines to clean up output
                    data = data.replace(/[\r]/g, '\n');
                    // Strip 8 byte header from each line of output
                    data = data.substring(8);
                    data = data.replace(/\n(.{8})/g, '\n');
                    $scope.stdout = data;
                    ViewSpinner.stop();
                });

                ContainerLogs.get($routeParams.id, {
                    stdout: 0,
                    stderr: 1,
                    timestamps: $scope.showTimestamps,
                    tail: $scope.tailLines
                }, function (data, status, headers, config) {
                    // Replace carriage returns with newlines to clean up output
                    data = data.replace(/[\r]/g, '\n');
                    // Strip 8 byte header from each line of output
                    data = data.substring(8);
                    data = data.replace(/\n(.{8})/g, '\n');
                    $scope.stderr = data;
                    ViewSpinner.stop();
                });
            }

            // initial call
            getLogs();
            var logIntervalId = window.setInterval(getLogs, 5000);

            $scope.$on("$destroy", function () {
                // clearing interval when view changes
                clearInterval(logIntervalId);
            });

            $scope.scrollTo = function (id) {
                $location.hash(id);
                $anchorScroll();
            };

            $scope.toggleTimestamps = function () {
                getLogs();
            };

            $scope.toggleTail = function () {
                getLogs();
            };
        }]);